As iconic as the graveyard and its denizens are, I am realizing just how limited it, and in particular the space you must travel in order to reach the various landmarks and bosses, is/are in terms of engagement.
The graveyard itself doesn't need much to touch-up; if anything for a graveyard it's a tad more lively than it needs to be, with Mr. Fox and later Ingot choosing to hang out there.
The bottle of "Good juice" you can quaff, along with the collection of gravestones you can bust open and skeletons you can fight, give you a little something for levelling up, and monsters are found further out as a reward for exploring, so I won't ask for more juice to collect/spend in the graveyard. Instead, I think this issue would be amended with more world-building/lore stuff on the way.
What I realize needs some sprucing up is the way between the graveyard and respective landmarks; in particular, the Cabin and the various fog giants.
As you determine new structure and characters that can be interacted with, please consider placing at least one or two per batch along the way- preferably distinctively- so that as we're walking at our paltry speed or "flying" in pathetic bursts, we can have something to look at, someone to talk to, something to do.