Nether portal from @snesivan https://www.pixelpapercraft.com/photo/61fd4104a60653a41074daa5/ruined-portal I didn't see the video so mine is a little different. I love his builds.

plus a baby ghast from aguilera2611 https://www.pixelpapercraft.com/papercraft/6404f473e7c6aeaddba9a6f5/baby-ghast-minecraft-dungeons