They both LOOK to be healthy but, in reality they both need a better basking area and, better UVB.
Basking spot temps for both of them should be between 95 and 100 degrees and the warm area under the basking spot should be between 85 and 95 degrees and, the cool end of the Viv should be between 75 and, 80 degrees. Heat is what helps them digest their food properly . This being said, I noticed that you heat and UVB are separated. UVB and basking lights should be next to or in conjunction with each other.
To address your UVB issues: Those coil type UVB bulbs are basically useless for dragons as they do not emmitt enough UVB nor are they good for them. They can cause eye irritation, eye infections and/or blindness in some cases. It is prudent to address this with a good quality UVB. We alway recommend either an Arcadia T5 12%D3 or a Reptisun 10.0T5 HO, these are the best on the market as of now for desert dwellers. It needs to run at least 1/2 the length of the enclosure {4' viv length requires at least a 2'
UVB light}, these are long tube type fixture and bulbs.
Just a few tweaks here and, there and bingo you on the road to a couple of happy dragons!!!
I am not saying these things to be critical, I am just trying to help your dragons have a healthy happy life with you.