The short stories I’ve published thus far have all featured covers produced by me. I studied computer graphics at university, and have been working on artistic ventures to a lesser or greater extent ever since.
I think Tolkien is probably the most famous author to also illustrated their own work, with many editions of his books featuring his artwork both inside and on the cover.
I do get the impression that this cross-discipline creativity is somewhat rare, but I am curious to know what others think about doing so.
Aside from issues of level of talent, is there a particular reason why, I wonder? I would think having the person who is more intimately involved with a book than anyone else could be also produce the cover would be a fantastic step.
So, am I foolish to want to do covers and possibly even illustrations for my work myself?

Do you know of any other authors who do this?