Hi Kimberly,
Be careful not to interpret her feelings about this based on a single reaction! As others have said, she is very likely to struggle with this and change her mind about how she feels.

She's like you look fat. lol. I pull all my shit out and let her see. She thinks I'm nuts but I'm pretty sure we're cool. Whew. We'll see. I got a pretty cool wife
Just an observation from the outside: "You look fat" is not an uncommon reaction outburst when the wife first sees pictures. It might mean "You are not prettier than me, don't even try!".
Be very careful as this is a common mistake to make. You want to show her how good you can look, but to her, "Kimberly" is "the other woman" and she is fat and ugly!

I'm pretty sure we are cool.
No! That is very unlikely at this stage. Be very careful and go very slow. Keep talking with her, but give her time to react to this. For most wives, this it a gamechanger and she need to find out what it means. Let her set the pace.

- Suzie