This is awesome! I like the detail you put into everything--the globe in the bottom right corner, the glass on the bookcase, and on the book covers!
The way I see it, this picture gives the message that when you pick up an amazing, intriguing book, you can go anywhere, be anyone and do anything, even fly, like what the girl is doing. It's a great message. She looks like she's having the time of her life! :-D