Sketchable seems to be the flagship ‘creative’ Microsoft program, at the moment.  It is described as, “Part journal, part canvas,” and is designed to work with touch screen Windows devices.  I can’t say yet whether it lives up to the hype, but it is quite a learning curve for anyone used to Photoshop.  I would say that it delivers a lot of graphic ability without any seeming difficulty on my Surface Pro 4.

The Sketchable tutorials don’t yet exist but there is a manual and has some stuff.