I have found some threads that sort of relate to my query, and the image of the flower located here: http://www.pixologic.com/zbrush/features/01_UI/ seems to suggest it is possible to use Zbrush for sketching and painting like Photoshop or Sketchbook Pro.
I have gotten use to colour and brush changing and got the document to a plain canvas state, but I am still having a few issues. Mostly to do with the media I am applying to the canvas.
I feel like I can’t escape the blobblyness of 2.5D painting to achieve good old fashioned 2D. I think the attached image shows what I mean. I would like to achieve this without lashing out for a license for sketchbook pro, which I can love for another 16 days!
Any help, or tips would be greatly appreciated. A tutorial to creating that flower image would be fantastic.

