Gah, I keep wishing I'd gotten into this at some point, but I keep putting it off and then forgetting about it.. It's nice that the show's come along well enough that they're able to change things like that up now and then. Not bad, looks very nice, although after dealing with a couple of my own, I can't help but notice the one tiny dot of cyan in her hair..
I get them sometimes too, but sometimes it's a matter of the select-by-eyedropper tool and sometimes it's just me letting up off the pen, and then it makes a weird curl afterward(mostly when I'm using S-7 for detailed stuff). But it could be anything really..