looks really good to me. I live in zone 6b and here is my setup for a Meiwa kumquat tree

can you plant inground. My tee has 4 layers of glass with 5 layers on top. I heat it with lights that ore controlled by a 35F Thermo cube switch

^^^ That's a nice set up. I did something similar to my outdoor Meyer lemon tree with 3 100w lightbulbs to keep it warm. Sadly, we lost power in Feb at 3am one night when the temp outside was 5 degrees F, the tree was dead the next morning after just 4 hours of no power.

As for your lighting set-up tim, it seems ok but if it's not enough light then your leaves will let you know soon enough. (turning yellow/falling off)