Disgruntled Ron
Harry and Hermione - no, not like that!
The Main Villains from two of the books
Hogwarts School gallery
Harry Potter canon fanart 

Ron sulks and eats (3/28scan/Painter Classic) A scene from Goblet of Fire, where Ron simmers about being poor during mealtime. 
Harry and Hermione practice (3/28scan/ Painter Classic) Another Goblet of Fire scene, where they work on the 'Accio' spell. My first pic with just these two. Platonically.
Tom Riddle and Barty Crouch, Jr. (3/28scan/Painter Classic) The main villains from two of my favorite books. Riddle's got his diary, and Barty has Mad Eye Moody's eye.
Hermione lectures the boys
Snape humiliated
SPEW Meeting (3/28scan/Painter Classic) 
One of my favorite Goblet of Fire subplots, contrasting Hermione's zealous fanaticism against Harry and Ron's disinterest.
Teenage Snape (3/28scan/Painter Classic) Taken from the Penseive scene in Order of the Phoenix, after James drops Severus onto the ground.
Draco and Pansy as prefects
Pansy Parkinson and Draco Malfoy (3/28scan/Painter Classic) The Slytherin prefects in Order of the Phoenix, and the first drawing I've done of the two together, I think.
Mr. Weasley
Arthur Weasley (3/28scan/Painter Classic)
The Weasley patriarch in Ministry of Magic robes.  The original sketch was much grimmer for some reason.
Mrs. Weasley
Molly Weasley (3/28, scan /Painter Classic) The Weasley matriarch, with a lovely apron.  I mostly cribbed from my last drawing of her. She looks more stern here.
Ron and Hermione glare-off
Quidditch Harry and Ginny
Quidditch Harry and Ginny (7/17scan/ Painter ClassicProbably from around Half-Blood Prince, when Harry realizes he's got a crush on Ginny.
Angry Ron and Hermione (7/17scan/ Painter Classic) Typical Ron and Hermione having a difference of opinion; even when shorter, Hermione can still go nose-to-nose.