I did that already few days ago: https://www.reddit.com/r/minipainting/comments/zbgbej/first_attempt_at_painting_a_figurine_super/
You know colours depend on the light source, it looks different in life etc... either way I really really think it went way better with colouring then I would imagine, I am still pretty happy with it, I think with each project it will go only better.
I was planning to make kickstarter for that thing today, buuuut, it didn't workout yet, I will release it soon, if all goes well for me there will be much more in future