Princes sirena (original)

Whoa looky here time for me to get my critique on! *cracks knuckles*
I really like your color choice but would it be fair of me to say that there really isn't enough of it...I think you should do a border of shading...like a light green, around Sirena, and maybe even around the whole pictures border. I know she already has some yellow and shadow going around her, but I mean, the color just pops out from behind her...plus you use yellow very frequently so another color would just look better. Now! Color is covered, let's go to something else. The characters expressions. There all pretty good but maybe you should think how to make them look how they're feeling in a way with more pose then face. On the left, she's upset, in distress, and her eyes are closed with her arms crossed over. I'm guessing that is to look dramatic. But here's something that can make it more so:
She is on her knees, her hands/paws are clutching her dress, and her eyes are streaming.
For the middle, she is determined. She's going to bring her enemies down. Maybe she could look more confident and angry. Her fangs bared a little bit, her eyes narrowed down in an intimidating way. She should be holding her weapon not so loosely, but clutching it, and her other paw is in a tight fist. As for the one on the right...I think that couldn't be made better, it's a good pose.
But don't let my critique make you think I don't like it, because that's not the case at all. I am just really hard in my critiques. I truly love this piece, it's well drawn and so cool looking!!
And this concludes my critique.