For the most part, for this type of non-representation abstract display, you have to play with the viewer's eye--right now there's really no reason to look at this. There's a few reasons for this.
a)You're not exploiting positive and negative space to do your bidding. There's something called equivocal space, where the viewer isn't sure where the background starts and where the figures begin, and this is a big player as to whether or not your piece will "pop" or not, you know? A lot of optical illusions exploit it. Anyways, right now, your piece really doesn't have it. (btw, I think this is also called ambiguous space
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(to show something with a bit more equivocal space)
b)Composition. The goal is to achieve some sort of balance, whether it is symmetrical or not. There's certain little principles you kind of have to know, or at least be aware of. The only guideline I can think of off hand that would help you is, that a large object towards the center is balanced by a small object near the edge. I donno, I'm all rusty on this stuff.
http://www.johnlovett.com/test.htm This might be useful--its pretty much the same stuff they show you in design books and stuff.
Anyways, good luck
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