I like Dennis' spot on self-description, "colourful semi-realism." His are pieces I'd seen before, a long time ago, but hadn't known the artist until more recently.
I recall the piece I saw that first time was the Sansa and Jaime speculative-scenario piece. Another I like is the one with the title "Say goodbye to the last dragon," a very lovely painting. His Rhaegar has a face that's oddly familiar, but I cannot pinpoint who it reminds me of!