They look pretty good, but it seems like the lineart looks off - too thin or pixely or something, I can't tell exactally what, and I think you need more highlights, especially on the reborn cadogre, as it looks quite flat to me. Also on the cadogre the anatomy looks a little off.
The hipposaru is really cute =3
The wings look gorgeous, but once again, I think the lineart is too thin
Maybe try drawing a bloodred ruffie?
![Razz :P](./images/smilies/icon_razz.gif)
XD I love bloodred pets, and I love ruffies, and maybe working with black and red will give you a good chance to try with better highlights, since white is hard to highlight? =P
They do look good though, with some practice they could look great ^^
( I tried posting this when I wasn't logged in, I hope it doesn't double post it later or something) :C