Time for an opinion poll: The copyright on the first Dragon Adventure coloring book will revert to me next year. I am reworking the designs (cleaning, giving them bounding boxes, etc.) and I had a question about backgrounds.

The original presentation lacked backgrounds. I was going for a slightly simpler approach with the first collection. But the rest of the coloring book series includes backgrounds.

So! Shall I add backgrounds to the Dragon Adventure 1 designs, or shall I leave them with open negative space?

Above is an example of the difference between "open" and "filled" backgrounds for one of the images.