I tried pixlr some time ago and was not impressed. It was an example of people wanting to add "funny faces" to snaps of them and their drunken friends when out with a camera phone on a Saturday night. I went back to it today to do a quick review for the website that I am setting up for people who want to do more creative and abstract things with their image. I was more impressed. At its more serious end it is getting very much like Photoshop, especially its interface.
Here are a couple of shots I used to try it out. the first started life as an MGA classic sports car and the scond began as an E-type Jag !