Rick has also been collaborating with poet Peter Money on a series of poetry comics, which I know will interest many of our readers. Here's one page:
The rest can be viewed here.
By the way, here is a page from Rick's run on Swamp Thing which I bought from him when I met him at MoCCA 2007. We discussed abstract comics briefly (I picked this particular page because it looked so abstract to me, not to mention so beautiful), and look how he signed the page:
(Thanks to Marcus Parcus who first drew my attention to Rick's recent posts of "Abstract Krackle.")