I'm putting my answer on your wall. I made a reply on my wall but this way you don't have to go back to my profile here it is: I'm still struggling too. It's why I comment so much, everyone struggles and needs support. Mostly I make positive comments because most of the members far exceed me with their abilities and only need cheering up when they tackle something outside their comfort zone. Also, color checking refers to both using the color checker for painting from life and the practice of dabbing on your photograph source.