I couldn't sleep last night so I went to look at the Drawing Club. I love the sketches they post there from the costumed model life-drawing nights!
I saw some sketches by Brett Bean and with a click on Google I was at his blog where there is a ton of cool stuff, but Bean also has this really fun animated gif of a dragon illustration that you really MUST SEE. Go check it out right now.
After you poke around his blog for a bit you can check out the list of "hugely talented art friends" and "inspirations." There's a lot to keep you busy.