Grafit Studio - 850+ Castles and Fortresses Reference Pictures | 6.8 GB
This pack includes over 850 reference pictures with castles and fortresses, featuring different seasons and parts of the day, exterrior and interrior view, as well as various details and close-ups. It will be a great tool for creating environment illustration, concept art, matte painting and more! Check out the previews!
More info - http://www.artstation.com/marketplace/p/p8GmR/850-castles-and-fortresses-reference-pictures