I'm in the process of reading the Chrestomanci series, by Dianna Wynne Jones. I've got one left, and so far one of my favorites is Conrad's Fate. Here's the title character, done in Painter.
His uncle signs him up to work in a manor as a manservant with ulterior motives. I enjoy the setting of the book a lot, because it means everybody is dressed nicely and the environment is all...fancy and wealthy. I like the characters a lot, too.