Lowering the ambient heat........ will help the spectrum of your LED actually be, the spectrum advertised.
Heat will change the color of the diodes as the current changes...just some food for thought.
Try to keep your LED's @ 22-25C for best performance, both color wise and efficiency wise too.
As far as constructive criticism, the photos seem to reflect that the heat is up too high. The plants just looked stressed altogether, like a high heat, high evaporative situation.
I think it is often overlooked but getting the heat right, helps so many other things: plant health, overall watering etc etc....do not take it for granted. Honestly think that might help a ton and maybe you can enjoy the growing part instead of the other side.....