Yes the temperatures are all good. The cage is a little odd but it's been fine for the last 2 months since we changed to this arrangement. It does have a hiding place (separately pictured) on the bottom of the enclosure. It never uses it though.
This whole color change just started in the last few days. Nothing has changed in at least 2months with surroundings and everything. Pictures of the iguana were taken once it started Browning the last couple days. Temperament is still good and it's still been acting healthy from all the information I've read.
Just realized I don't know how to post photos here. I'll upload in a moment.