He posts on his tumblr -> http://octoscrazystation.tumblr.com/
"im no longer satisfied with my current artistic ability and its incredibly frustrating and discouraging whenever i try and draw something, that’s why i havent posted much lately
and no, i dont want a bunch of people telling me how good i am, im perfectly aware im not bad at art, but i want to be better"
"So, it might be a while before I submit anything on this blog (yeah, sorry - but I don’t have any plans to stop drawing weird porn completely, don’t worry) but if you’re totally desperate for new art drawn by me, feel free to follow me on my personal blog at http://spudmeister.tumblr.com/
It’ll mostly be hasty sketches of Nier Automata stuff for some time to come while I work on improving my artistic ability, but it’s something, I suppose."