I’m working on a few things right now (not paid work alas!); one of which is a composition involving various monsters and a Planar Alchemist. Here are a couple of pages (A5 and A3) of designs for the archaic re-breather and dimensional-hopping devices. The device is partly based on the Antikythera mechanism; as an historical example of an ancient computer. http://en.wikipedia.org/wiki/Antikythera_mechanism
Here are the larger drawings:
These are some designs for a planar alchemist; someone who uses alchemy to open portals between dimensions.
And here are some pictures of the alchemical symbols that he would have on his robe. I tried to create a vaguely logical approach to these designs to add an element of authenticity.
These are the first ideas I had for a fight scene picture. It will be set in my Twilight World; a world with a perpetual stormy sky and lots of ruins. I thought this a suitable location for a fantasy picture. This monster is a larger version of the toad-like demons in an illustration I did: