I was trying to capture the essence of the dead/grave concept, that's why I chose that type of pallet, I am really open to suggestios, what can I do better, what would you recommend? thnx for the taking the time, appreciate it so much.

Well I asked an "AI" and it pointed me to a bunch of accessibility guidelines including how to pick pairs of colours that are contrasting enough.

I'm no designer so that's where I'd start at :)