Yup. Been studying some stills of the old shadows-painted-on-the-sets classic and drawing cartoons off the back of 'em. AS FOLLOWS:

The astute reader will notice I have favoured Werner Krauss as Caligari himself (OR IS IT???). This is because he is ace and amazing. There are a couple of abortive attempts at the soppy main character, and a little ink sketch of the lady which I quite like. Look close and there's also a drawing of a rabbit that I copied off Steve Purcell. I have no shame.