I\'ve actually had a fair number of commissions and commission requests as a result of my site. It\'s completely dependent on the traffic you get. You can\'t really put up a brand new site and expect commissions to start flowing in as a result. Advertise your site and build the traffic with good content (galleries, tutorials, reviews, forums, etc). This takes a while to build up, so be patient.
The best source for commissions as a new painter is eBay. Don\'t list figures on eBay thinking you\'ll make a ton of money; you might, but do it mainly for the advertising. Include a link to your website in every eBay auction you put up. Make sure you\'re not selling anything from your website while the auction is active or eBay could close your auction. Assuming the quality level is high enough, figures you finish on the side, or ones from your personal collection that you no longer use for gaming are great for putting up on eBay for business.
When you have eBay auctions up, go to some of the assorted forums and post about them, with an image IN the post (NOT as a link) if the forum allows it. For example, if you\'re selling a 40K character, mention it on the 40K forums like Dakkadakka. Also, DON\'T do this for every single auction. Two reasons: too many posts might make you come across as annoying, and also too many posts may result in \"ad blindness\" where people get so used to seeing your posts that they don\'t really think to check out the work.
Putting cards in what you ship out is very good, but it\'s better to put the link in the eBay auction. It\'s a lot easier for a person to click a link than to type in a full URL. The cards will mostly get you repeat business from people who already have your work.
Offer discounts for recurring customers. Don\'t advertise it; just do it once someone has tossed a couple of decent-sized commissions your way and ONLY do it for the customers that you want to keep dealing with. Having five really good repeat clients that are easy to work for is a lot better than having twenty where every job is a chore.
Also, don\'t undersell yourself. If someone says you\'re too expensive, don\'t haggle. Just politely thank them for considering you and then move on. However, if you NEVER get work because everyone says you\'re too expensive, well... then you really are too expensive. If nobody ever says that you\'re too expensive or you end up with more work than you can handle, then you\'re too cheap.
Hope that helps.
Kep