I was recently re-discovered the art of Kay Rasmus Nielsen and Virginia Frances Sterrett. In their work you can see the illustrative qualities of Arthur Rakham mixed with the design sense and Art Deco stylings of Erté!
Take a moment (or a few dozen) to absorb the art styles I'm talking about here with some quick Google image searches, it will feed your soul.
- Arthur Rakham
- Kay Rasmus Nielsen
(Download public domain East of the Sun and West of the Moon.)
- Virginia Frances Sterrett
(Download public domain Tanglewood Tales.)
Where you find innovate art, you will find the innovative words they inspired. Where you find innovative words, you will find the innovate art they inspired. Conversely, the "same old art" – speaking stylistically – will give rise to the same old ideas, and the same old ideas to the same old art.
I have so much more to say about this, but it's all messy and sounds like a value-laden manifesto. The take-away is this. Look at your RPG book shelf. Consider the art you find there. Are you programmed, or being programmed to think about fantasy in only certain ways? Challenge yourself! I could tell you where to look, but part of the joy is in the exploration. Different things are out there! Exciting things, innovative things, weird things. Things that will make you uncomfortable but which will help you grow and pull your imagination out of long-established ruts.