I couldnt find the original image I used for the design, but its recreated from a screenshot. If anyone finds it, please let me know in the comments. The schematic includes torches and lanterns for illumination and to make everything spawn-proof. The last image is a life-size reference of how a player would see the portal, with maximum FOV. The steps are designed so that no mobs can climb them, only players with a Jump Boost 2 beacon.