Landscape sketch

As much as I love nature, I'm really bad at drawing it. I can never get the textures right and get the space and depth to come across as well. Unless there are buildings--buildings I can do. But, I do love nature, so I gave it a shot. This is a sketch I drew while referencing a photo from Cougar Mountain in Washington state.

Then I tried coloring it with Illustrator brushstrokes... hard to do.