Wow what a beautiful assortment of blocks each one special.
Carriem touched on the subject of stabiliser but I will add a little more info for you. If you wish to leave the stabiliser in, yes it will add bulk to your quilt. However you will not be able to run it through your printer therefore you will have to hand draw each block (not so much fun) and stabiliser can distort when pressed with a hot iron.
I personally would not use it