Nice job considering. They look pretty good to me and I like the rope lights. Maybe you can get some of those in neon purple so they can look cool. J/K
My only concern would be your snakes getting themselves stuck in the pipe clamps holding your rope lights. Probably not but snakes do manage to get themselves in situations sometimes.
To finish the outside you might consider just rubbing the wood down with either mineral oil or vegetable oil. Wipe it on let it soak in for an hour then wipe off the excess, do several applications and repeat from time to time. The advantages are you don't have to remove your snakes. The oil will bring out the natural colors of your lumber and it is still pretty water resistant, won't flake, chip or peel.
Nice pythons too.
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BigT
There is a difference between ignorance and stupidity. The ignorant can be taught, stupidity is beyond our control.
1.2 P. m. melanoleucus B/W N. J. Northern Pines
1.2 P. d. deppei Mexican Pines
2.2 P. l. lineaticollis Linis or Lined Pines
1.2 P. m. lodingi Black Pines
0.3 P. c. sayi Kingsville X Stillwater red bulls
1.1 Drymarchon melenurus Blacktail Cribo
1.2 D. corais Yellowtail Cribos
1.2 M. s. cheynei Jungle Carpet
2.6 L. p. pyromelana Arizona Mt. Kings
1.1 L. g. californiae B/W Cali kings
0.0.3 M. f. flagellum Eastern Coachwhips
1.2 G. m. bottegoi Western Plated lizards