Visuals - Good pixel art and in game elements (needs some work on consistency of outlines ex. trees, stones, and tools).
UI - Needs some size and border consistency fix (edges), mana indicator is a little bit confusing because of its shape and placement (could be a bar of some sort under HP bar).
Gameplay - Smooth player movement and good game mechanics. Mob's movement and directional movement shift is too fast.
SFX - could use some mob and player action SFX.
Additional - Tab options can be HoldKey>HoverMouse>ReleaseKey for fast and easy accessibility instead of clicking every time (btw noticed some shortcut keys like "I" and "B"). Interaction button "E" should be able to close the same window/ui it opened by pressing it again.
That's my take for 60+ mins gameplay testing experience. Good Game!