actually, for jade, i think she has a white shirt with blue sleeves, like dave's. that's what i've seen on a lot of cosplays and fanworks and such. her skirt is denim, i think!
and mew, i haven't personally cosplayed a sea dweller - though i'm planning an imperial condescention cosplay yeah!!!!! - so i don't think i can help! i'd recommend taking a peek through the cosplay thread on the mspafora, there are a lot of amazing cosplayers there and super duper helpful people!! link link. i'd love to run into you at kumoricon if i go, though. i'm going to go ask my mom after i post this, but another problem that stands is how i'll get there, and what i do once i get there! i don't really have anyone to go with and i know no one in vancouver
for my terezi cosplay, i'm stuck on if i should buy a wig or dye my hair. i heard black hair dye is really hard to get out and doesn't look very good, but it'd be cheaper than a wig, and i have an awful track record with wigs anyway! i sitll need to get a pair of red converse (not just for cosplay, i've wanted a pair since forever) and locate a good pair of her glasses, but otherwise i'm pretty much set! i guess the cane is optional, and i'm not sure how the con staff would like me carrying around a prop cane.