leonxiii and my challenge to one another, (see below) his bonus challenge was it had to involve his character Takoda walking by covered in paint. Apparently she got covered in the stuff when Parker and Leon decided to have a paint fight at kindergarten after Leon's pic.
leonxiii and me. Basically it works by he draws an image, and then my challenge is to draw something that at least tangentially relates to the previous image. (I.e. Leon is playing in the snow, next image, Culania is holding a snowglobe of the location Leon was in.) At the bottom of each submission, there's a 'Bonus Challenge' where we say a character and action, and our opponent(?) has to include the character and action in the picture while still making it somehow relate to the prior image. While the bonus challenge doesn't have to be the main focus, if the main goal can be completed just by following the bonus challenge, then we don't have to do anything extra. (Ex. This image is just the bonus, yet it satisfies the main challenge. If his bonus said: Syrus and Merlin go shopping, then I would have to tie that back to his picture (either through art shopping, or clothes shopping for school). Further, the bonus challenge is completely optional so we don't have to do it if we can't think of a way to do so. There's also a max of three characters per image so it doesn't get too complex. 
