Long time lurker coming out of hiding because I always see great advice and shopping links from you ladies! Please help! I’m stressing and not enjoying shopping or dressing my 4 month post partum self for Christmas photos.

The back ground is an indoor white Christmas theme (tree, fireplace etc)

I really wanted to use the dress my friend brought DD1 in Korea during the Olympics. It has some subtle sparkles and is a dark charcoal. I bought this other one for DD2 but the colour isn’t quite what I expected but think can make it work? I’m waiting on tights (mauve, dusty rose and charcoal cable knits) to arrive but now thinking the colour won’t match after seeing it in person
I have mauve bows for the girls. What do DH and I wear?
Links very appreciated
DH is a clothes snob, I’m not sure if he’ll wear plaid...
ETA I have dark grey pants as well. I’ve been looking at sweaters but finding them very boxy