This reminded me of the old exmortis series back in 2004.
Simple atmospheric sounds.
Crude facial expressions.
Everything left for the brain to fill in the gaps.
That skeleton with the red eye profusely tapping made me pause and think for a moment before engaging, that was brilliant.
These few minutes grabbed my attention way more than the hours length of it's predecessor.
This was actually pretty damn good for it's sketchy style of animation.
Im interested in seeing this flesh out into a full on point and click.
much luck to you.