I'm just thinking about my visualization of Frostgrave. The first question to me is: how looked Felstad like? I remember Glantri City from the old D&D module, but it seems to extravagant to me. The magical towns I like most are Imrryr, the capital of Melniboné, and the city of Cymril in the Seven Kingdoms from the Talislanta RPG. Both have something in common: lot's of towers. I tend more to Imrryr, because of the sinister aspect of Melniboné (can't imagine a whole town disappears in a magical blizzard because of one lunatic sorcerer - maybe there was more chaotic sorcery in the city and the faults of one Wizard only the catalyst to initiate the cataclysm ...), but I didn't find an image of Imrryr in the net, which I find helpful as a reference for my terrain.