Admin Option

Hello.  Is anyone here using the ADMIN (cloud) option for FPD?  If so, can you tell me where all images (artwork designs) are being stored?  Are they stored in the cloud on FPD servers or locally on my own hosting server?  

Also, can anyone direct me to the best place to get 3d models for additional products that FPD does not provide base products for and how are these uploaded and integrated in FPD admin panel?