I love the covers for this trilogy. Mark (our esteemed Editorial Director) designed them himself, pulling artwork from the interiors and having it colored.
(My favorite part of that process was watching Mark get two different color samples, combine the two files, and somehow come up with something perfect that was halfway between the two options. Photoshop being a complete mystery to me, this was like magic!)
(This is what the Korean covers look like. Also pretty, but a totally different style!)