Book covers - considering in store design, context

There will be some displays in the windows, of products stacked up, posters explaining the offer. 

'THE PERFECT GIFT'

'AVAILABLE GIFT WRAPPED'

'FREE(?) CHOCOLATE BAR WITH EVERY PURCHASE OF BOOK (specified books only)'

'BUY COLLECTION OR INDIVIDUALLY'

I don't know whether to try and mock up the window display or wait until I have photographed my finished products? 

IN STORE
After doing some research into Waterstones interior, I realised that there is a lot of dark wood/carpet, seems quite humble homely place. I had an idea of using an wooden cabinet to display the collection within it. There would be shelves at the top that would contain all the books, ordered according to what book it was. Then there would also be the fold out posters in rolls within the long strips (underneath the shelves). There would be 4 drawers, in which the bookmarks would be available to pic 'n' mix. It would basically all be pic 'n' mix, customers can choose what they want, and there would be posters next to the cabinet explaining how the process works. It is all gift wrapped in the wrapping paper at the cash point.

CONTENTS OF PACKAGE. 

This is what the ULTIMATE package contains (all contents available). 

Should there only be the package offered? Or should there be the option of what you want gift wrapped? 

Do I only focus on how the package is received, or do I have to specify how it is presented in store? 

PHOTOGRAPH FINAL PRODUCTS. 

make posters from them advertising the offer in store. 

Available to be gift wrapped. 

Contents can be bought separately, however, when bought as set, save up to... £££££££. 

All products individually priced: 

Chocolate - £1.29

Bookmark - 99p

Fold out poster - free with book

Book - £6.99