Last of the year and a new beginning...

I was cleaning out my studio, looking at ebay, blogs and what others are doing. I found some watercolor paintings that I was not happy with so I cut them up into 2.5 x 3.5 inches to use for collages thinking I could use them for artist trading cards. I found a few smaller face studies that I did and liked so I started painting other faces on the blank side of the "cards". I liked them too. I think I will continue with these mini series... but what to do with them later... Do people still buy, trade these cards? I have seen them on etsy and ebay... What would be worthwhile to sell them at.... so many questions... I have a headache... I will just keep painting for now.... Here are the first two done on 2 1/2 x 3 1/2 inch 140 lb watercolor paper.