Arm-stretching space, lots of light, there are compositions and colour (by Tom Gaadt) to die for.
"From the creator of the internationally bestselling and award-winning BONE [and RASL] comes a charming and adorable picture book, the first to feature Smiley Bone in an adventure all his own!
"On a beautiful sunny day, happy-go-lucky Smiley Bone is walking through the woods when he begins to count some friendly birds. The birds sing and climb so high that Smiley must find a fantastical way to keep up with them! With lively drawings and expressive word balloons, Jeff Smith has created a one-of-a-kind picture book that will delight the youngest readers."
I honestly have nothing further to add.