I can't give proper criticism on the work, as I think it looks great the way it is. I like how you've taken focus away from the edges by blackening them out, and given focus to the stock that way. On the other hand, I can't see the 'i' in 'Riku'. It just looks like 'RKU' to me. Was that intentional? You may want to work on the type-spacing if not.
It might just be that I'm a sucker for neg space, but I think it's very good here. My only major problems are that it looks a tad oversharpened (coming from me that's a little hypocritical, but... yeah xD), and that the light is a little bit too strong and doesn't follow any certain scheme. When doing light, I usually take out my dodge/burn, figure out where the light and shadows are hitting my stock, and dodge/burn accordingly. P brought up that the 'i' in Riku is a bit invisible, that is most likely because you used a sans-serif font on a smaller size, so the line becomes a little invisible. I think that perhaps making the font a little bigger might benefit, right now it's just kind of drowning. But good job. :] You're improving.
