Looks very nice!
I would add a smaller (75w?) regular bulb on the second level to warm it and brighten it up.
Otherwise, show us pics of your new tortoise in his new home!
It's about 4' by 4', and the tort is about 4". I'm working on the outdoor enclosure, but I have an enormous german shepard I have to engineer it around, also I live in the Smoky Mountains so the terrain is extremely rocky and uneven, so I might have to borrow a bobcat from a friend to level an area out. I have a huge deck, but it is all covered, and I want him to get some sunlight, so I'm not really sure exactly what I'm going to do. I have a kiddie pool that I'm going to use for now, but I'll have to supervise his outdoor visits until I can get something permanent.
For your outdoor enclosure, I like to incorporate uneven ground. I use slumpstone block and with just a little flat head shovel and pick work, the blocks will sit nicely. Then all you need is a cover built with 2x4s and some welded wire to keep Mr. GSD at bay.
Anyhow, your enclosure looks really nice. Good luck.
I actually live in the smoky mountain national park, so I have all woods and huge rocks on the side of a mountain, I'll have to do some serious excavating regardless of where I put it, we also have a lot of bears, some wolves, and bobcats, so he'll probably never stay outside all night, I have an enclosed porch that I have to put my dog in at night, not a very hospitable environment for a tortoise even with a closed top. We also get weird temperature drops at night because of the elevation.
Also is the palm tree I put in the enclosure okay for the tortoise?