The concept of making your own Super Saiyan is pretty neat. The background suits in with him transforming into a Super Saiyan. He was drawn pretty well for the most part. There are a few issues with how you drew his body, though.
1. His abs should be closer to his pecs. Or you could've just given him an eight pack. Either way, there's a weird gap between his chest and abs.
2. With his pecs, the skin is going into his biceps, which isn't anatomically correct at all.
3. His right shoulder looks abnormal. There's a little bit of an indent by his shoulder and then there's a little bulge. I know it's supposed to be muscle, but it wasn't drawn very well.
Besides those issues, I think this is pretty cool as a huge DBZ fan.