If that is Treebeard, I hope his voice and actions make up for his weird looks (mainly his head) -- IMHO he is one ugly dude in that picture!
Well, it IS a toy, which would be
adapted from whatever photographs the filmmakers provided. As such, it is probably very close, but not 100% identical to the movie version. Toys, especially action figures, are commonly made "wilder", and more colorful, than their movie antecedents. Plus, things like joints (check out the figure's hips) are difficult to conceal.
Time will tell. But considering how horrible it could have looked, I'm happy with it. I still remember how crushed I was when the "Americanized" Godzilla was revealed to be an ugly iguana.