Pretty nice! Coloured one for me. I suggest pen tooling the purple line to her right. Delete that little red hard brush. That's just me, I can't stand hard brushes when the rest of the tag is smooth. Looks pretty damn good. Well done. Also maybe add a border? Edit: I'm sure a mod will move it.
i suck at pentool so you guys can attempt it if you want ;p, i never used a hard brush, it was just the c4d was a little too strong aha i did add a border you just can't see it ;p and ye im waiting for it to be moved
Just grab the pen tool, draw a nice curve where the pink and blue bit is (remove it first), change your brush settings to about 3px hard and get the same colours, back to your pen, right click - stroke path - brush (click simulate pressure). Fiddle 'round with that 'till you get something you like. I'd try and do it over the top of yours but I'm busy.
The purple/light blue lines to her right look very ..jagged..when the rest is smooth, maybe smoothing out the lines a bit would add a nicer effect? Rest everyone else has already said. I like the colours, good work =)