not bad but the colors aren't my favorite but thats just my personal taste. Aslo the blending between Zues's shoulder and the BG is a little iffy. Might want to work on blending the stuff together better to make it look more natural.

It's a nice attempt, but its a bit to random. The render and the sharp colours don't melt with the soft toned zeus. Also... you may wanna take a soft brush and layer mask around the sharp edges of zeus. That happens when you cut the render but leave some pieces outstanding (Norm with magic brush tool) and then sharpen it too much.

Try messing about with hue and saturation to try and get the colours to gel.

Hope it helps.

PS: Is that from the age of mythology box image?