The mysterious Gnome...

This man's art taunts me to this day. His works are both refined and simplistic in how they look, and he draws em huge. Who is this mysterious Gnome? And where did he go...? I know he was on cerine's... on that note, what about the other girl? Plasticat... Did they just dissapear? Or did something happen that's taboo to speak of? If this is the wrong place to ask then by all means point me in the right direction!