@Ceru I'm sure it will look great after the final touches! As you say, dark skin and light hair usally make a weird impression.
I've done a little research and nope, sketching while flying doesn't look comfortable.
I started colouring Ghilan'nain, still building up colours. I couldn't for the life of me get a hue of purple similar to Mucha's illustration, so I think the next layer over the mask will be a washed dark blue, to give it a darker and more dramatic colour. I'm not sure it was the best time to change brushes, but last week I bought red sable brushes in sizes 2, 4 and 8 (the ones I use the most, my drawings are usually quite small) Jeez, the difference! They hold so much water, I can even make a bit of mixing on the palette. And the colour looks so much better, the dry and grainy look of the Tiger brushes is completely gone. I'm still getting used to them, the water+pigment flow is much quicker and difficult to control, but I think I'll be enjoying painting much more.