Whilst looking online for some info on the HG Wells novel, When the Sleeper Awakes, I came about this illustration, which looks strikingly familiar...

(original page: http://www.sffaudio.com/?p=3257)

Hmm!

Wow . .Librivox too ...

Do you know what year this design is from?

I haven't a clue - it does look like some home-made thing to me.

Heres' the Penguin edition:

amazing stuff, it would seem:

"The Sleeper Awakes is a dystopian novel about a man who sleeps for two hundred years, waking up in a completely transformed London, where, because of compound interest, he has become the richest man in the world. He has been the famous Sleeper for centuries. A fanatic socialist, the main character awakes to see his nightmares realized, and the future revealed to him in all its horrors and malformities. The people adore him, and their masters – the supervisors of his legacy who rule in his name – do not want him breathing."

That's the edition I have - it's one of the best books I've ever read.

It even inspired me to create my own piece of artwork...

I just downloaded the audio version (per the link you posted) so one may listen to it on one's headphones whilst lolling on a beach somewhere, in summerland.

A book will normally cite who did the cover artwork. Not sure about online stuff though. Perhaps its just coincidence.