I'm working on a digi-painting of a small flock of Whimbrel I saw last Sunday. I thought I'd post it in stages as I develop the painting. This is done using a Wacom tablet and pen (an older version of this) and Photoshop Elements.
Stage 1: I pencil-sketched in the Whimbrels and then added a pale watercolour wash layer.
Stage 2: The background roughed out on a third layer.
Stage 3: Layer 4 - the background layer is developed till looking reasonably finished. I'll come back to it once the birds are done to harmonize the detail levels in both.
Stage 4: In a fresh layer I've started work on the birds. At this stage I'm more interested in getting relative tones right rather than fine details. This is as far as I've got so far!
For more examples of what can be achieved by this medium in the right hands, see here!