How to coordinate an uneven bridal party?

I am considering having 3-4 bridesmaids and only 1 groomsman. I am ok with the numbers being uneven - although its frustrating to google and find large uneven bridal parties (eg 5 & 7, not as obviously uneven as 4 & 1). I don't want the lone groomsman to stick out or to look overshadowed/overpowered. I would like to have the bridesmaids in mismatching, pastel dresses but I wonder if the combination of numbers AND random dresses will look very disjointed (not just in photos, but on the day)... other pictures that seem to look quite good are black dresses & black suits - which also means the bridesmaids can pick their own black dress.I also have one girl who will be more comfortable in a jumpsuit, which makes me lean towards the black dresses for that option too. But then I don't know what to put my flower girls in (black? white? hot pink?) I wonder what your thoughts are? Please don't say "its your wedding, do what you want!" I know. I just don't want it to look stupid...