Help me decide - fabric for dress

I can't decide whether to do all black super hero, or have one of the following for the skirt. Its a drop waist type dress with a gathered skirt.

I really like the last combo

The first or last pairs.

pink horizontal stripes

Flipping heck you lot are no good, that's every choice covered so far!

Last combo (red polka dot)

If anything I'd go for the spots, but personally would try and get a knit rainbow that has a black in it to get it matching the superheroes. But then, I'm just a fussy moo lol!

I like the horizontal pink stripe combo

2nd one, the horizontal stripes from here as well