paint foam towers

Seeking help on Crypt build So we are attempting to build this style of crypt 12' x 12' from scratch. I think we have the build portion down pretty well, but I have limited experience forming this much foam for the design. Essentially each side is going to be almost completely covered. I...

Well after decade we finally are making our cemetery fence towers. 18"x18"x48", 1x2 frame on a 2x3 frame base. 1/2" blue foam covering it, 2" foam tops. We have routed out blocks 12" long by 6" deep so there is only one vertical grout line per horizontal line. I know, a pic would be easier...