And Evil shall reign o'er all.

[StarSock64]

Well he wasn't just referring to your colors, but he thought that you lacked knowledge in a lot of different areas. It's not really efficient to only look at things or to only practice, but to actually READ about structure, colors etc. helps tremendously. It might help ease your "I'm not sure about this or why this is" feeling. I get it myself plenty, too, and I've read stuff for hours upon hours. There's a lot of basic things you should know. It's good to both read and find examples because then you're taken through the logic of it and you can see how it should be done.

I keep focusing on anatomy in here, but right now everyone's focus is on colors which is a weak spot for me. So I wish I could show you some tutorials or something but I don't know of many.