This is an awesome idea Gem! :D What a cute Pika sketch! I gotta learn how to do that turning the canvas thing xD I'm really looking forward to seeing more from you, especially on colouring and shading which I struggle with!

Things I'm interested in knowing is how you choose colours for shading (I know it's a tactic to choose a colour (eg. purple or blue) and then just change layer options. Then you don't have to try and find good shades for every colour (yelliow is the worst for me xD). Also how you block in colour behind the lineart. I feel like there should be an easier way then having to carefully colour in without going outside the lines, as you would in traditional media. But when I try and use the magic wand or anything to select the area within the lineart to fill with colour, it never looks right. xD AND finally, if you have any really useful brush tool options that you use for lineart, colouring, shading etc. that you would be willing to share!

You da best <3