Tropical greenhouse

From my secound attempt at infrared colour film. I don't know why it's so washed out, next time I'll deliberately underexpose... I also don't know why I get so pale and cold colours when I use an orange filter that is supposed to give warm red-orange-yellow-green colours... I tried to experiment with lots of different colours on these shots, but they all turned out either yellow or magenta...
See more infrared here: [link]