Here's a few pictures of some psychedelic cactus from my garden.
The first one is about 18 feet tall and it's a Trichocereus KK339. It was one of the first cactus I ever aquired.
These ones have just been rooted and they are Trichocereus (Echinpopsis) hybrids
The taller plants in this group really need to have the tops cut off before being planted in the ground. If I leave them how they are now chances are they'll be too weak to support their own weight when they get a bit bigger.