The model is originally designed and licensed by Lord Tony. The designer uses the least parts to achieve the best visual effect. The unique design and color scheme of the model make it an impressive display and collection, providing lots of fun while assembling.This is a bundle deal you are buying both Black Falcon’s Fort and Black Falcon’s Tower at a reduced cost. I wanted to design something different. I wanted to make sure both mocs could be individual sets while also able to combine together to form 1 big set without forcing the buyer to purchase two 31120 sets if they don’t want to. So you can have one or the other, or both at the same time. Maybe in the future I’ll add a third set to create a castle but as of right now I don’t know how yet, it might take awhile and I want to work on other mocs first.