Trying My Hand At Art..

So, I have just started messing around with some digital art with the hopes of creating some character and scene sketches for future books. So far my set of textures, and other tools is very limited, but I have come up with this one:

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Friends by ~VydorScope on deviantART

These are not characters from the current novels, just random people I thought up. They may appear in later books though. I am working on a second one I will post in the coming days. What I need to do is try and sell these images somehow so that I can raise funds to buy more tools, textures, and etc.

So what do you think? Cool or bust?