I'm still rather uninspired so I'm basically going with my method of digging out old drawings and coloring them, just to do something.
Here we have Professor Toad-Face. At least it's how I see her: broad faced, with a piggy nose, foul little curls on her head and, for some reason, a mole. And dressed in pink of course!
Oh and while I was drawing this I imagined her looking at McGonagall, that's why she looks angry (my favorite scenes with Umbridge are the ones where McGonagall is totally pwning her toady ass lol!).
(c) J.K. Rowling