I like but I think there is a lot of room for improvement. May I suggest studying The Animator's Survival Kit :) that may sound funny because this isn't animation but animation has a lot to say about expression :)
hey mashup. the general suggestions of keep creating stuff and keep pushing yourself always apply, but if you send me links or email me some stuff (kyle@kyleart.com), I would totally look at it. Also if you post some stuff in the threadless blogs, the people here are totally nice and supportive.
About my design
2 colors on slate.
hope you all enjoy!