I've checked over a few Rav so I have a good idea on space and how much content needs to go on the page. This is just a section from the 2000x3000px (100dpi) main image, about 2/3 has been assigned for the map/images and so just a right column for text, etc.

The gold dire caterpillar (lol) is a snake that was turned into gold, the players will climb down it when entering the dungeon, when they try to leave if they dont get out soon enough then it will have turned back into its normal form and be a giant snake for them to fight.