No offence but I would definitely not pay for your art, I would rather go to someone like the one's who drew the pictures in your signature. I don't mean to be too harsh, sorry.
Yeah, while I believe everyone has the right to try; I just think your art isn't at the point where you could actually sell it successfully. Maybe spend some time on google looking at techniques, and styles. But keep in mind that while it's okay to learn techniques from others, in the end, you should develop your own style.
No offense, but no, I probably wouldn't. You need some more time to improve before you start selling commissions.
also, was that drawn digitally? If it was, why did you take a picture of the monitor instead of saving the file and uploading it to an image hoster?
you need to close the thread yourself c: under the show sig box there should be a close thread box, tick that