Some of these pictures are really fascinating, but some are awful… If they could get consistently good stuff, that'd be really great. It's certainly an interesting style.
If this gallery is sorted by date, newest first, then they're probably heading in the right direction. With a couple exceptions.
Lots of these images look like they'd look better if they were done with a hard aliased (i.e., jagged, on/off) brush like the "pencil" in ms paint or grafx2 (a pixel art program like Amiga deluxepaint), oddly enough. The smooth lines look out of place to me. Especially the monochrome images. Lots look better in the thumbnails.