Business Casual

I'm looking into creating sketch cards for the upcoming conventions that I'll be attending. Will anyone be interested in these? Who knows? But it's not a big initial investment, and doing sketch cards is something that I'd definitely enjoy creating. There's really not a down side to them. So here's an idea of what a blank card would look like.

front of card

back of card

I'm not sure if I'm sold on the design of the card back, but anything else I throw on there seems like overkill. It's got the basic Business Casual information on it along with my name and the site address.

Anyway, does anyone have a recommendation or a suggestion for a sketch? I've done a couple on paper just to try it out, and I may post some of them in the forum. One thing I know is that I need to get better at coloring. I was trying to get some basic color down by using colored pencils. I wasn't really pleased with the results. I might have to break down and buy some actual markers from an art store. I know a lot of artists use these Copic markers, but a set of 12 costs nearly 40 dollars. I'll probably just get some basic colors and go from there. What can I say, I'm cheap.