Outfit for family pictures

So I recently lost 60lbs total! My daughter is 16 months old and we are doing family pictures this weekend. I want to do formal pictures with my husband and son in slacks, button down and a tie. My daughter is still yet to be decided but a fancier dress. Then there is my dress...

is this too right to wear for family pictures?

This is what is was kind of going for. We will be in the desert on a mountain.

Then I can’t decide what my daughter should wear!! Any help is greatly appreciated!