Try to make a focus point, mostly it's the place of render where you want to keep attention on. Head of tiger would be a good choice at this work.
How to make it? Well, you generally learn it from tutorials and by examining others' PSD files. Anzo uploaded really good works here. Find them at GFX section. Anyways, there are several ways to create a focus point. For example light source and shadows away from light sources. Blur the work and sharpen the point you want to keep attention on.
They are my ideas and I'm not a wise about GFX :D As bakura normal said above, "But for a beginners work, wow."