Macleay's Spectre

A 2d metroidvania game in development, a kind of platformer. In progress, there is no end yet, but a consistent amount content, such as powers to learn and master, rooms to explore, a boss (a single for now) to defeat, and allies to make. Is played in the role of a new born macleay's spectre that tries to get out of the anthill he hatched in. Inspired by The Hollow Knight (genre and thereby some dynamics), my favorite game I would say.
Audio, which includes music and sound effects, is still in progress and is minimalistic at the current stage. Advice or propositions are welcome.
More widely, given that the game is in development, I welcome any constructive comment.