One of the downfalls to posting WIPs is that you don't actually know if you will finish it, or mess up so much its not fixable :p So this very well might turn into bonfire material before its done. (lol, he looks so cross eyed here, will have to fix that when I colour his eyes)
I quickly sketched out the cheetah, (from another photo from the paint my photo site), then copied the basic lines on to better paper.
I then took my neocolour crayons and put a hint of colour in the background. Doesn't have to be neat, just make sure enough is put down to get the proper colours.
And then wet the background. I just went around the cheetah's face, but for a more messy look I could have put some of the colour onto the cat. If I had liquid frisket I would have outlined the cat and then wouldn't have had to worry about any of the neocolors staining the fur.
Now onto the eyes, because if they don't look right, the whole thing is pointless.