“Descriptive” is a common compliment for books. Perhaps too common – one of the usual downfalls of newer writers is the tendency to over-describe every aspect of their stories, from the characters to the setting to the teapot in the cupboard.
Characters should be described. So should setting. That teapot, though, probably doesn’t require the readers’ attention, and you should not be wasting your authorly breath on it. Too much description, even of vital elements of the story, bogs down your narration and leads the reader to start skipping entire sections of your story – assuming, that is, they don’t simply quit reading.
How much is too much? At what point do you go from “very descriptive” to “bloated and boring?” With writing, there are never any rules – only guidelines. The following are a couple of mine.