Awesome! I really love this, I seen such quality art from the LOTR wizards! A shame, that Peter Jackson put Radagast in the Hobbit and represented him as a nut in the forest with muck on his head... at least he would create him like this above! This is amazing, I love how you composed it, it gives back the mood of the wizards so much!
He don't remember them, is maybe a metaphoric way to say: "i didn't say them since a so long time, i cannot remember theire faces" Or maybe worst.... "I don't remember them" could be the way for Gandalf to say "They are falled, and disapeared, so i have lose them..." It's just possibility.
Don't care about the size of Radagast in comparaison of Gandalf. 1) The movie.... Is just a movie, (with Ragagast who have a bird shit on his hairs) and don't reflect all the world of Tolkien and hiscomplex mix of magnieficience, mysteries and darkness. The Hobbit is a movie made for the Harry potter lovers. -_- It's full of "Hollywood" codes. 2) Remmember that: when the Istari came from Arda, Gandalf was the wost humble of them.
The Tolkien work use the language of the books, not the movies language.... And certainly not the Hollywood language.
I just wanted to let you know that I put this in an art feature in my group , in the article "Realms of Fantasy and Myth: Finale - Tokien's Legacy". You can find it here: realmsoffantasy-myth.deviantar… ^_^