Over at the Abstract Art, Traditional Art & Collectors group, the August challenge is "Clear". We have about 6 reference photos to choose from and then have to do our version of that photo (any medium) I chose to do these marbles in a 4" x 6" size. Coloured pencils (different from my usual acrylics.) These then are listed on Ebay on the 20th of the month. Awards go to most unique bids etc.