Posted by Martin Hand as part of a set of artworks by Steve Whitaker (1955-2008), probably best know as the colorist on V for Vendetta. (None of the other pieces are abstract, by the way.) Found via Kent Worcester.
If this is actually from the '80s (Hand puts a question mark after the date), it's the first proof I have of Warren Ellis's claim, upon first seeing my pieces in 2006, that "British minicomics were full of this kind of experimentation in the 80s, and I don't see a lot that's new here." (By the way, that whole thread is worth reading, as a case study if nothing else. And thanks, Jacob!) If anybody has other examples of 80s British abstract comics, please let me know and I'll post them here.