Oh, you're totally right and light sources are my weakness but that wasn't what I was trying to get across with this tutorial (because I fail at it). Really, it's just about getting the right colours, blending them right etc. Where people put the colours and how they shade/highlight is up to them XD It's a very basic tutorial and I didn't want to kind of try and explain and demonstrate something I'm not strong at myself. But thank you, I know I need to improve a lot on that for sure. It's a goal for the new year XD