You may use my artwork however you wish for whatever you wish.
Unless you tell me otherwise, I will upload the work to my art blog.
If you're thinking of using it to put on a product for selling, we will have to discuss it (i.e. what kind of product [like maybe you're asking me to do an album cover or something], where it'll be sold, how much you plan to sell it for, so we can come to an agreement on the additional)

Please always add credits whenever you use the artwork on social sites/blogs