lee wrote:Very impressive, the detail is amazing.

I wonder what happens to them after the festival.

Well apparently they are towed back to the originating temple and left to decline naturally, which obviously means the wax just melts in the heat . The basic sub structure made of mesh and plaster is preserved and sometimes modifications are made but generally the overall appearance is kept . This is why a winning float is not allowed to take the prize in consecutive years .It gives the others the chance to catch up .
You will see when I post the photos of the parade some other temples efforts are also of a high standard but many just do not have the resources to compete . Nether less they still contribute to the overall majestic impression celebrating the arrival of Buddhist lent .