First off, it sounds like my high school art study when my assignment was to analyse a famous painting on its meaning and techniques lmao.
Anyway, you capture a lot of interesting detail and viewpoints on that piece. I may suggest that the key object that is far outside the main lighting and deserves more attention is the skeleton's hourglass which is hard to see unless further inspection. Perhaps that indicates that we do not consider to use our life time effectively or maximise it to be productive; rather we use our time to enjoy ourselves instead.