Wingdude, one thing you may want to consider is creating an online portfolio. The mailer idea is certainly not a bad one but the returns on a printed promo investment these days isn't what it used to be. In the past, a 'leave behind' piece was crucial. Still is in theory but the 'leave behind' piece these days is largely a 'link' since a web presence can display a lot more than a single printed piece. Plus the 'leave behind' pieces in the past, if the Art Director liked the work, would get filed for future reference. Well the filing cabinets are gone and the likelihood of your mailer ending up in the circular file, unless it's the most awesome thing they've ever seen, are astronomically high. On the other hand, if they have a link to your site, it's relatively painless for them to bookmark it.
As for your work, I pretty much agree with everything that's been said. The clouds or mountains(?) in the distant look like dirty clouds. I'd either get rid of them or turn them into puffy, white cumulus clouds. Either see them or don't. The"I can kind of see them" doesn't help this particular image much IMO.
I agree with TheFrogMan regarding the type in your card. I like your logo but I'd give the gradient below some real thought. I'd also reconsider the font used. You can make it out but it's not the most quickly legible font out there. At a glance the letters and numbers look amazingly similar.
I have an issue with the content itself but that's obviously subjective. The headliner says "INTOUCH". After reading that, the only thing I can see from then on is a pencil being driven into the nude's back. I don't understand the relevance of the swirl in the background but more because there is a radiating element (the cone coming out of the artist pallet) but it doesn't radiate from the center of the swirl. Or perhaps the airbrush could be shooting out from it's center or maybe the camera eye would be at it's center or even place that sphere thing above the nude at it's center (what is that anyway?).
I like the overall color scheme and there are definitely things that work about this image so please don't take my comments as a 'general trashing'. I'm only pointing out the parts I'd do different.
Anyway, design is fickle and ultimately it comes down to what works for you,.... and the guy payin' for it.

Below is a link to my site. Feel free to trash away. I'm an equal opportunity critiquer. (critiquer?)

http://www.curtthurston.com

peace, love & all that rot.....