@SketchyArtish I'd say that the composition looks a bit sparse at the moment, and maybe you could try bringing the tree and salamander closer.
You could achieve this by making the angle of the viewer see through the tree, between branches, downward at squirrel, to the salamander.
If you like the position of both characters as is, just add foliage, and then I'd say the biggest thing issue is the tree. Since we are looking downward at it, the left and right lines that make up the trunk should appear to come closer and converge, the more lower the trunk is.
Minorly, the characters could have more body language. For example, if the salamander is scampering, he could be stretching his hands(?) with his back legs bent inward, to show movement. If he is hiding, he could be surrounded by foliage, with tail curled in to hide. The squirrel could have shoulders hunched in anticipation, tail up, head to left or right, ears perked to listen. Personally, I dont think faces need to be added if the body language can be used in this case.