It's Fine And You Should Be Proud
This piece of art is just fine with very few minimilistic errors that no one would really pay attention to. Personally I think everyone who gave yo a 6 is either an asshat or pays WAY to much attention to extremely tiny detail that doesn't really matter all that much.
My favorite thing about this piece is the texturing work you did. I love how the entire drawing gives off a radiant fairy tale feeling with dull, yet bright colors that are very enjoyable to look at. The anatomy of the fairy is great, and I really can't see any errors in it. I love the rose and the background of the forest.
The design is very well done with close attention to spacing. Everything is spaced out perfectly and it all blends in with eachother very well. Don't be down about this picture, it is very good and you should always know that.