A few corrections:
Draco should have a Hand of Glory, not an axe; Snape should have a cauldron or a book, not a spear; Luna's Dirigible Plum earrings should be noticeable; Dumbledore's glasses are half-moons; Lucius should have his walking-stick, snake-head cane-thing; Umbridge should have at least 3 cats with her, be wearing all pink, look more like a toad, and have a bow in her hair; Mad-Eye should have a mad eye, not an eye patch; Moaning Myrtle should be more transparent; Percy needs his horn-rimmed glasses; McGonagall needs her square spectacles; Filch needs Mrs. Norris; Flitwick needs to be about half that height; Rita Skeeter should have her Quik Quotes Quill; Charlie should have more scars (from the dragon bites, you know); and finally, Wormtail needs to look a bit more ratty. AND THERE YOU HAVE IT.