But he aint finished it lol.. You need to do something as it is plain, no idea what you can add though, sorry.
Nice technique in the top left - I love the grids. The bottom left and top right vector parts look like (and I strongly suspect you have) you've just randomly clicked the pen tool for a bit. If you have them on a seperate layer then I'd delete them and use something else as a main feature of your work.
