Help me pick my first postpartum event dress!

Going to a wedding in May. This is my first big event postpartum, and I’m feeling self-conscious about my body (naturally).
The dress code is semi-formal/cocktail. Only colors we were advised to avoid were whites/creams. Which dress looks best? (Please excuse me looking a mess in these pics; it was a long work day. I’ll also be wearing shapewear the day of)

Pic 1: Baltic Born velvet floral dress Pic 2: Show Me Your Mumu gray dress (im worried this looks bridesmaid-y; it’s also very long and needs tailoring) Pic 3: Baltic Born green satin dress (I would iron/steam it, of course)