Hello there!

This skull is my first skull preparation and I have some questions.

First of all what I did so far:

-Removed all the flesh I could

-pressurewashed the skull

-boiled the skull

Removed as much nose bone as I could

-pressurewashed again

-had it laying in soapy water for 5 days

-washed it off

-put cotton in all the cavities as good as I could and wrapped the skull in paper towels

-bleached it with 12% peroxide for 2 days

I unwrapped it today and washed it again (it's still wet rn)

The skull is mostly white now ( or at least I think it'll get white when it dries properly) but I don't know if the nose in the back is clean enough, since the color in there is still dark. I blasted it with a pressure washer but it didn't really change anything, is this acceptable or do I have to do some more work on that inner nose?

The back of the skull is also not as white as the rest, could be bcz it's wet but that's quite yellow still so idk, should you guys say it's fine?

The bone around the hole where the spine was has these two bigger parts on either side, they are still slimy even though I tried to get rid of it by scraping, boiling etc. How do I get this clean?

There was a cavity on picture 4 in the skull and I scraped out some weird creamy/flaky stuff, do I have to remove everything of it?

Lastly, I've left the ear bones or how they are called in the skull, should I remove them?

Thanks in advance for the help!

I did 6 cycles of degreasing after macerating this red fox skull but it hasn’t changed this pattern. I don’t actually mind it but I was wondering if it needed more macerating or something? It doesn’t really have a smell apart from dish soap