My First Snake Tank: Opinions?

[Serpico]

vent? Could u please show a pic.

A vent is a portion of the viv's side made with screen, netting, or any other material which allows air to pass thru.

This picture of my last terrarium shows the detail of the frontal vent. There is another opposite and above it, so the air circulates, hot air goes upward and exits the enclosure from the top vent, and fresh air enters the enclosure from the bottom front vent. Alternatively, the vents can be placed on the side panels, same layout, one top and one bottom.
Otherwise how the stale air can go out, and how can oxigen enters it?