source links author.. and I am pretty sure background image is copyrighted

Idea is good, but Jello is right, your source has watermark. If the post link is from the same author of the pic, and it is non-copyrighted, remove the watermark.

needs a little more blending... the book looks like it does not belong to the image...

It doesn't really look like you chopped anything.

The book needs some better cutoutwork. Otherwise - good idea.

good idea It's not easy reading upside down hehe :P

good idea... but i was expecting more from you author...

the cutout of the book is visible.. try to blend it in more..