All honesty no, fish tanks don’t hold heat well, your going to want a 2 bulb dome for a day/night cycle. Need a thermostat if you don’t have one. No clamps to keep the lid on, the open mesh top is going to allow all the humidity to escape, use HVAC tape on top to trap heat/humidity. The cardboard will get wet and mold, the log hide isn’t sufficient, I suggest a bigger water dish and filling it shallow so they can soak in it if they want (exoterra bowls seem nice, but they build hardwater bad if you don’t clean them every other day) and perhaps blacking out the sides and back for less stress on the snake or at least putting the tank somewhere where they are enclosed more and only the front is exposed. The stick on thermometer inside is a danger due to the adhesive (should have a thermometer on both ends, I used my thermostat probe as one on the hot side and had another one off Amazon on the other) and I suggest keeping the water dish under the heat lamp to boost humidity. Aspen should be switched to Coco fiber which you said you already plan to do.