I've got a hat full of inexperience, a fist full of samples, and a head full of progression ideas.

http://soundcloud.com/graemesmedley/cave-diver-messed-with-a-bit

This is the first track I composed in Reaper, and I think it could use a bit of fixing up. My main concern is the abrasive synth line (it's actually just ReaSynth), but any other criticism you have to offer is greatly appreciated!