Lum The Mad
I just posted the Player's Handbook Pictures because that's the first thing that came to my mind. But I agree: the FRCS3E was better. The design of the whole 3e Forgotten Realms Line was top notch (illustrations were hit and miss as always, but the "old tome" design of the pages was awesome - this should definitely come back).FRCS3E did a far better job.
Another art style I'd like to see in D&D is Icewind Dale's (CRPG) one...
I love this guys work since I saw the cover to "Expedition to the Ruins of Greyhawk" (2006)A Michael Komarck 5e would be ideal for me.