!!To do a thorough review in autumn when Aps have been upgraded for iOS 11. Digital watercolour is a key feature for upgrade with faster processing speeds.
Currently my attempts are pretty crude. These will be explored for Assignment 4 on Aldeburgh.
Currently digital watercolour depends on transparency effects, edge effects, and deletion with water brushes to vary transparency.
Good at very detailed drawings that build up gradually in textured layers using a combination of water brush shapes (including drips) and water eraser. Use alpha lock for edge effects. Has the most control over brush shape. Bleeds have to be simulated through smudge or eraser tool and edge effects. Due for significant upgrade in the autumn.
For the most beautiful effects I have found:
Can get interesting effects with the canvas variants. Mainly focuses on edge effects.
Watercolour brush is the only brush I would really use from the built-in toolset. It has really nice bleed effects that are fascinating to watch. Good for atmospheric abstract effects. But difficult to get real subtlety. Upgrade due?
Dedicated watercolour for more complex combined techniques. Has 3 layers that dry at different rates that can be controlled. But quite slow at higher resolution.
Can get nice Japanese watercolour effects with vector gradients for beautiful anime type effects. But not watercolour as such.