I would like to add foundation to even skin tone further, eye liner, eyeshadow and lipstick. Your hue and saturation for lips and cheeks is a bit limited, no one wants to put fluorescent yellow lips on someone, so you need to get more natural with those shades. I would like to see real makeup shades like peach, pink, bronze, blues, green, purples, etc available, foundation shades custom. You already have such a great start. If you need a female to help you out let me know ;)