Rose Comparisons

I probably shouldn't show this with full dialogue, but I already posted it so, uh . . . <<;

Color or black and white? I'm kind of leaning towards color . . . but something seems off with the palette? Maybe too much green. ANYWAYS. What do you guys think?

Oh, and if people could help me with a title, that would be awesome. It's a comic about volleyball for a prestigious volleyball site, about two twin sisters: Rose and Carly. Rose is passive and blunt, and Carly is loud and bossy. (Rose has the brown hair, Carly's blonde.)
Any suggestions would be appreciated!

Please respect my work.