Feedback better difficulty customisation

I feel like there should be a "customised" difficulty option that would allow you to change certain aspects of the difficulty, such as: percentage of pixels lost, items dropped or not, hunger or not, beam up below surface allowed or not, and potentially enemy challenge level as well (health and dmg increase or decrease).
Another separate but still somewhat related suggestion would be an "edit character" button allowing you to change difficulty and character name after character creation.

 

If it'd let you alter some character appearance details (like hairstyle & colors), I'd be all for the latter option. Maybe implement it as some sort of thing you can build? I mean, sometimes early decisions in how you look can really wear on you by the end game...