pretty sweet!
personally I already have overworld from your previous bundle, so the attraction of the new bundle is a bit lessened. I understand that you want people to get the bundle, not just discount the single pack that contains a lot of work! but I think itch has a way to make a promo for existing customers? this was done for example here: https://itch.io/s/66172/60-off-if-you-own-gboracles-environment-pack