Band pictures are always such a bizarre exercise. So many ways to approach them, so many options, and (usually) so little time. I see you've gone with the "lead singer makes funny faces while the rest of the band pretends they don't know there's even a camera" approach. This, combined with the apparel choice "half casual, half slightly better than that (yet still casual)" yields a look that proudly states "This is 2015 and we are a band" but also says "Either that or we're someone's Photography class assignment".
tl;dr: Nice pics.