This is very nicely done, I really like the colors you have used. The main thing I notice about it though is the fur is a bit dull. I think you could add some stronger shading in there to make it stand out much more, especially where the tiger's ear is. On the black parts particularly add a bit of white hairs here and there. Maybe add a bit of a shine to the wolf on the places where the light would be brightest.

The angle of the tiger nose is a bit too straight on, I would suggest that turning it a bit would have made it flow a bit better. The tiger's left eye is also a bit flat, if you had brought it down just a bit farther and rounded it more that would have avoided that. I know it's hard to get that angle though sometimes. I would have suggested brining the wolf body or tiger body down a little bit to fill in that gap between the edge of the paper and where the body of the wolf kind of ends or make it a bit darker there so it doesn't seem like the tiger is floating above the wolf so much. I would have also brought the ground color up a little higher.

Overall though it's a very lovely painting. I like it. Keep up the great work.

So this is a very lovely painting, as usual from you. You are a very skilled artist with a lot but not too much attention to detail. I strongly approve of it.

However, I feel like the background should have been flipped over a little bit, for lack of a better way to put it. The green part of the background may have looked better behind the tiger and his bright red eyes. Red and green are complimentary so the eyes would have really popped. Furthermore, the green background and the wolf's green eyes are pretty much the same shade, and sort of... blend into one another. This is very nice to an extent, as the pale green looks gorgeous against the black fur. But I feel like a bit of differentiation would have done the background some good.

I really like the implied ground, on the topic of the background. That little bit of brown in the corner really weighs the image down nicely, giving it a very strong, sturdy composition. I think the eyes are my only real complaint.

Except Mr.Tiger-face has a bit of a crooked muzzle/nose bridge. The nose, bottom of the mouth and the eyes of an animal all lay on basically the same plane of perspective. But his eyes are in 3/4 view while his nose is almost facing the viewer. Bit of a skew there, nothing that can be fixed in this image per say but is something to take note of anyway. Also, his nose/muzzle seems to be a little long, but that might be due to its awkward turned appearance.

Overall, I really like the message presented here. Well done. :3