This goes to Mr. Bones.
The game is good and have steady development, but a few notes.
First the garden is more wilderness than an neglected area. The garden can hold tying plants and cracks in stones and ways and so on, but should have a form, that looked like better for a neglected area.
Also it could have labyrinths, winter garden, fountain or plantation etc.
Second, it would be good, if the character shows his possess on the screen e. g. with red eyes, with a white wisp or green glow.
This are things, I would implement or chance. I hope this is useful for you.
A easy bug I found (version 0.031), when he possess the ring, the ghost can go back to his remains and conjured by the ring.
This it, what I would now say.