These are illustrations from the Beholder archive, from the 1990s.
There are lots more examples of work from around this time in the Beholder scrapbook.
These are all pen-and-ink — that is, offline — pieces, scanned in to satisfy curiosity and nostalgia.
This website (beholder.co.uk) came online in 1995, for the launch of The Concuspidor & the Grand Wizard of Many Things (which has remained online for similar reasons of curiosity and nostalgia).