Take a look at The Art of M.S. Corley. He uses a wide variety of styles and his work is really remarkable. A couple of examples:
Here is "Jonah," from Bible Stories.
And here is "Herbert West," from his Horrors of Literature series.
There are lots of other pictures there that I really like, such as the one of Carmilla, so prim and proper, except for that one little thing...
There are a couple of other Lovecraftian creatures, his own version of Smaug, and other literary characters and creations. Look through the archives and see if you can spot the reference to the old Dig-Dug arcade game.
Go to his site for much larger and high-res versions of his work. And as I usually say: check it out.