Just read the whole of Red Baron (had only read the first two volumes before now, and it really is a masterpiece. In some ways it does indulge the art a little and the story could feel slight for the three volumes it appears over. However the art is astonish and the use of the pages masterful, as thought he story is slight the atmosphere and dark tension is supreme.
And the art. wow. just WOW. Its stunning. The closest comparison I can think of is George Pratt (who interestingly enough did an Enemy Ace comic for DC), but it cleaner, while not losing a drop of the energy.
Its an absolute wonderful comic and I can't recommend it enough.