Hmmm let's see. I really like the look of this, especially the frame, the glowing effects and the facial expression, of course! The textures on the colossus itsself are very cool too! Still you could have used more detail where the earth turns over to the colossus / where it grows out of the earth. Also the face on its chest seems so... uh, lonely. Either it should be removed or you should put some more all over the body. (I know there is one at the shoulder too but this is just not enough) Makes it look a little uncomplete that way.