The Sketch cards are EXTREMELY hard to document under the Database system. The way we've (mostly) settled on is listing each artist rather than trying to document each individual sketch, each of one is 1/1.
With the Star Wars sketches it's even harder because the artist is generally only identified by a signature, which in many cases are not legible. I have no idea who drew most of the sketches in my collection. In this example Jason is pretty obvious but I have no idea what his last name is.
VERY slow trading due to health problems. Not transferrable so safe to trade with, just moving is painful and can't always access the cards.
Cardboard History My COMC
New Collection Website: Cardboard History Gallery (Still under construction)
Tips on how to make your scans look like the card does in hand (No more washed out, fuzzy scans!):