Looks great! just a couple of suggestions (I know your not finished yet, And im always first to comment on the saying "never show a fool an unfinished job"

) You will need a log or rock on the ledge so they can get closer to the heat source. also play around with the bulb wattage as they will need a good heat gradient in the enclosure. other than that im sure your beardies will LOVE it!! Good on ya for DIY, thanks for sharing

Ben