+1 for a groomsman, cocktail dress code

The fit of the items still on the way will be a huge deciding factor for me, but I’m still over thinking this.

My bf is a groomsman who will be in a tux. I want to feel like I look like I’m supposed to be his +1 without overdoing the dress code.

I’ve only met the bride and groom once, but they seem like super laid back and sweet people.

Can y’all help a sister out and rate these dresses? I think the black may be too short for a wedding, but I’m hoping it doesn’t fit so mini on me since I don’t have a model’s long legs.

Thanks fam!