Experimental drawing. Please let me know what you think.
Is this... are you abusing filters and image effects in Photoshop or something? This basically looks like you've taken a palette knife and applied various colors of plaster to an old blue wall. Which is actually pretty impressive considering that this is a digital drawing.
Oh yes. It's totally Photoshop filter abuse. At least 6 filters. I like doing stuff with Photoshop filters beyond the usual lens flare or watercolor filter that everyone uses.
looks like chalk, or that thick plaster paint (impasto?)