The angry come from KOF 2k1 or 2k2. They're too cartoonish for my taste, but the pose was ideal and it looks good in game.
The suprised is ugly, I agree, but it's better than a smiling lady. (And I think it's a Art of Fighting portrait, so it doesn't help
If I can find the new 2k3 portrait (and intro/ending), and if there is a decent 'suprised' Yuri there, I'll make a update.