I don't have any pictures to offer you as I haven't used a terrarium in quite some time, but as far as I had mine set up when I did I can describe.
I had a 30g tank with the heat lamp on the same side as the heat pad with the heat pad hooked up to a thermostat set to 92. my heat lamp had a 50w infrared bulb in it so I didn't have to worry about night and day bulbs and just ran that 24 7. I've always used cypress mulch for bedding as it holds moisture well and doesn't mold as much. I had a hide on each side of the tank, the water dish in the center to help create humidity, a log and some fake foliage to create scenery and to help with stress reduction. If your snake is a hatchling you will want to heavily clutter up the tank. tin foil on the screen in the areas not taken up by the lamp or a damp towel will also help you retain humidity in your tank. Hope that helps