This is amazingly detailed and professional looking! I love your use of colors, especially in the back where they seem to blend together. And I absolutely adore the dream traveller! The transparency effect blows my mind! How were you able to do that?! I also like the little characters in the grass and trees; I think I counted 6 of them.
It reminds me of when I took art class at my elementary school. We were shown pictures like this and I always wanted to make a picture just as great. Aside from pencils, I've gotten away from traditional materials. Seeing this picture, I think I want to try them again.