[jake13jake]

I have to say, great design. And yea, I've assumed you haven't detailed yet.
The one problem lies in the swinging of the pendulum. While some say anti-aliasing goes against Graal's style quite a bit, rotational objects are quite the paradox. You just need to do angles for the pendulum's swing, and if you want it to look anything decent, you'll need to anti-alias a bit. It's quite simple, though, really. You don't have to go all-out anti-aliasing, trying to find a million different shades unless you're doing huge graphics. You can do it more simply than that. I say this might take 2-3 shades. It's just like doing a mini-gradient from the foreground color to the base color.

Other than that, the only thing that stands out to me is poor lighting contrast on the top of the clock on the left side.