Trees...

I signed up for a paint class for absolute beginner's. My daughter is taking it with me. I had my first class last Thursday and we didn't paint-we drew! It seems that you have to be able to draw before you can paint. Why didn't anyone tell me this.
It is a watercolor paint class and for some unknown reason I thought I would just go to class and put paint on the paper canvas and have tons of fun. No, that was not to be. Instead he said draw a tree. A TREE! I don't know what a tree looks like in my mind. How can I do this. Oh well, I thought I can put down lines that look like a trunk. I did and the result is in the upper left corner. He said "It looks like a fantasy tree". Huh, it seems my branches are out of proportion to my trunk. He said "Start over and try to let the branches go off the paper. Don't let the paper confine me". WHAT!
Ok, I can do this. The result is in the upper right corner. He said "You are concentrating too much on the individual leaves. Try to think in color value. Blocks of light and dark." So I fixed it. He said " It looks good. Your strength is texture and detail". Didn't he just tell me not to do too much detail? I'm confused.
I try again using a light source this time coming from the upper left of my page. The result is bottom left in the picture above. He looks at it and tells me to try my darks and lights in different places so I do (I didn't take a picture of that one.) His remarks "You did exactly what I said, but it doesn't look right, you were right with the other one". Huh? Ok, I think, a great teacher, not afraid to admit when he is wrong.
I try for another tree at home and the result is the bottom right corner. Our homework was to read this paper he gave us on "line", which made no sense to me at all and to draw more trees. I don't want to draw more trees, I want to paint some trees. It is a paint class, after all. Oh well, we will see what the class holds in store for next Thursday. Until then, I'm drawing trees.