A small mystery

Anyone with the time to spare, please revisit Unknown species | Observation | UK and Ireland | iSpot Nature
It’s puzzling me that I can’t even begin to identity it!

Would you recognise a ladybird larva?

I know a few of them from my own observations, and from the pdf here: Conspicuous ladybirds | UK Beetle Recording
I don’t think they’re in the running, but…

Thanks to those who’ve contributed.

Thanks for helping with it