i submit my builds as minecraft maps. go to "my content" at the top right of your profile page, create new, maps, then add image gallery to include images

thanks :D well i generally dont really do medieval but i can certainly share tips. the number one thing i always try to do is work in "depth" in creative ways. most of my builds use combinations of walls and stairs to create the impression of window ledges/arches without using multiple blocks, allowing me to create depth without the almost cartoonish effect of simply using multiple block layers.