Excellent. Some just dont get it though.

This is not a drawing app! This is designed around a specific art form. An art form that uses brushes made a specific way. You arent going to get models of pens, spray cans, crayons or pencils. You arent going to get a color wheel. What you are very lucky to get is two colors that match the background. Five steps of undo. If you were doing this on paper you wouldnt have any undo option. The addition of a dry brush and a wet brush only helps you to be creative. Big plus. I wouldnt ask the dev to change anything at all.
I would ask the dev to consider taking the features of this app and creating a full on art app. Colors and brushes, photo import and the works. I think thatd be one of the best art apps on iOS. In my opinion, this is also one of the best art apps on iOS.

Gitarzz about Zen Brush 2