I currently don't have access to either my photoshop or illustrator. Therefore I can only post my older, already done work. This way, however, I can show you a broad range of what I paint.
Oh and because people asked in the comments: Unless stated otherwise, all my work is done in Photoshop CS3 and with my trusty Wacom Intuos 3. (I do love acrylics though and recently try to emulate to process as well as get my hands on some)
With that said, have a portrait of one of my friends: