Hi,
Just two little suggestions. 1st being to add snap points for safes. Relatively simple, but will save lots of time for people placing multiple safes.
2nd, please remove the ugly rebar sticking out them side of concrete components. I can understand why they were added, as when the components are displayed by themselves it adds aesthetic detail. However when they are placed in multiples to create a base, it looks ugly. If I spend days collecting materials, then brave the mixer, standing there as it churns out the parts, my base better look damn pretty. The rebar makes it look horrible.
Cheers, B00M.