GW Garden of Morr for 15mm Fantasy

I recently got the GW Garden of Morr set. I really like it. It's beautifully modeled and detailed. I think the mausoleum buildings are a littleon the small side for 28mm, and wondered what they would look like with 15mm minis. I think they work fine with 15mm, and especially with 18mm. Here's some pics. What do you think?

I could see using these mausoleums to make some pretty cool 15mm Fantasy terrain. Thanks for looking.