Imho no problem posting here though this area is mainly for analyais and critique for those wanting to improve or perhaps wanting to document the progress of a piece from concept to final for example.
FYI Pixelation has a portfolio section if u want to show a bunch of images.
A great thing about using this site is the built in zooming that doesn't blur ur image when u click it so u dont need to upscale the art.
An idea is to put a link to ur blog in ur forum signature as that's sure to drive more traffic over time than a 1 off post.