Baby Milestone Photography & First Birthday Sessions | Bellevue WA

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First birthday cake smash moment with two babies reacting differently, one laughing while the other crawls away during a relaxed, baby-led milestone session — First Birthday Cake Smash & Milestone Session

Tips to Help Your Cake Smash Session Go Smoothly

First Birthday Cake Smash | Seattle Milestone Photographer (Copy)

Baby Milestone Photography in Redmond & Bellevue | Timeless Studio Portraits (Copy)

Quiet Details (Copy)

Twin Milestone Session – Minimalist Studio Baby Photography in Seattle (Copy)

Twin Holiday Studio Session – Christmas Baby Photography Seattle (Copy)

First Birthday Cake Smash Details | Seattle Milestone Photographer (Copy)

Timeless Milestone Portrait in Studio | Seattle Baby Photographer (Copy)

Bright & Minimal Baby Portrait | Seattle, Bellevue & Everett Baby Photographer (Copy)

Baby Detail Portrait | Seattle, Bellevue, Everett & Olympia Milestone Photographer (Copy)

7 months old milestone Session (Copy)

Sweet Milestone Portrait in Studio | Seattle, Bellevue & Everett Baby Photographer (Copy)

Cake Smash Milestone Session | Seattle, Monroe & Bellevue Baby Photographer (Copy)

Bright & Simple Baby Portrait | Seattle, Bellevue & Tacoma Milestone Photographer (Copy)

Milestone Studio Photography Seattle (Copy)

4 months old baby boy (Copy)

Baby Photographer West Seattles (Copy)

Sweet & Simple Cake Smash Portrait | Seattle Milestone Photographer (Copy)

milestone session Seattle (Copy)

Seattle cake smash photographer (Copy)

Infant Photographer in Seattle WA (Copy)

Milestone Photographer Seattle WA (Copy)

Lake Tapps Baby Photographer (Copy)

1 year birthday photography (Copy)

Everett WA Milestone Photography (Copy)

Gig Harbor wa baby photographer (Copy)

Baby Photographer Redmond WA (Copy)

Baby Milestone Photographer Gig Harbor (Copy)

Tacoma WA Cake Smash Session (Copy)

Olympia WA milestone Photographer (Copy)

Milestone Baby Photographer Redmond WA (Copy)

Redmond WA Milestone Photography (Copy)

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West Seattle WA Studio Portrait Photographer (Copy)

Baby Photographer Seattle (Copy)

Tehaleh WA baby photographer (Copy)

Cake Smash session Redmond WA (Copy)

toddler photography Seattle (Copy)

Cake Smash Session Sumner WA (Copy)

Gig Harbor WA Cake Smash Photography (Copy)

milestone photographer seattle (Copy)

Tacoma baby photography (Copy)

Gig Harbor Milestone Photographer (Copy)

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Gig Harbor WA Cake Smash Session (Copy)

Bellevue cakesmash photographer (Copy)

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Lake Tapps WA Cake Smash Session (Copy)

Federal WA Cake Smash Session (Copy)

Tacoma WA Cake smash session (Copy)

West Seattle Cake Smash session (Copy)

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Tacoma WA Cake Smash Photographer (Copy)

Taocma WA Milestone Photography (Copy)

West Seattle WA Cake Smash Photographer (Copy)

Lake Tapps Studio Baby Photography (Copy)

Studio Child Portarit Photographer (Copy)

Seattle One year old Studio Session (Copy)

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Bonney Lake WA Milestone Photography (Copy)

Seattle baby photographer (Copy)

Seattle baby photographer Studio (Copy)

Lake Tapps WA baby photographer (Copy)

Auburn WA Baby Photographer (Copy)

Gig Harbor WA cake smash photographer (Copy)

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baby and mom portraits (Copy)

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Federal Way WA Baby Photographer (Copy)

Lake Tapps WA Cake smash Photographer (Copy)

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Motherhood Portrait in Studio | Seattle, Tacoma & Federal Way Newborn Photographer (Copy)

Redondo WA milestone photographer (Copy)

Reserve Your Session

We got a little sunshine today, but honestlyーgrowing up in Japan made me love rainy days.
Rainy days are perfect for cozy editing time.

Quick schedule update:
✨November and December are almost full.
✨April has just two spots left.

If you haven&rsq

A newborn session that feels like home.

Curled up on your favorite sofa.
Barefoot in the nursery you just finished putting together.
Snuggling your baby with no rush, no packing, no driving.

At home, everyone relaxes a little more. Siblings can wan

In what feels like a blink, your little one turns one.
So many little moments to remember… forever and ever.

Can’t get enough of all the little details in every stage✨

#milestonephotography
#cakesmashsession
#seattlebabyphotography

Umbilical Cord
Once, we were connected by this quiet, magical thread.
You borrowed my heartbeat, my warmth, my everything.
And when it was cut, we became two — yet somehow, still one.

If you’re like me and lost that mysterious little dri

When I finally got comfortable photographing outdoor sessions again, it’s already time to head back to my cozy studioーfilled with squishy newborns and glowing mamas✨

Since announcing my Japan trip, my March and April bookings have been filling

I’ve already rescheduled tomorrow’s outdoor session to an undetermined date in November. Rainy season has officially arrived here in Washington, and I’ve been glued to AccuWeather lately! ☔️
I’m really hoping for a few more su

Japan 2026 🇯🇵
We’ll be in Japan from April through June!
Our kids will be in school full-time, and I’ll be photographing families in between ramen dates and spending time with my parents. It feels so special to reconnect with my roots w

Atsumi Sullivan Photography-LLC

Seattle Maternity & Newborn Photographer

Studio located in Lake Tapps, WA

(206)496-7637

atsumi@atsumisullivan.com

Atsumi Sullivan Photography serves families throughout Seattle, Bellevue, Redmond, Tacoma, and the surrounding areas from a private studio located in Lake Tapps, Washington.

© 2026 Atsumi Sullivan Photography LLC