How can I achieve similar effect of posterization?

[rotten.luck]

Hi, dear community!

How can I achieve a similar effect as on this vinyl cover with a high-resolution photo? 

Will appreciate any advice 🙂 simple posterisation is not what I look for I guess.

[c.pfaffenbichler]

Which image do you eant to edit thusly? Please post (a lowres-version of) it. 

Clipping the subject may be unavoidable and then a combination of Adjustment Layers (possibly with additional masking for elements like the saxophone) might help. 

[c.pfaffenbichler]

[rotten.luck]

Thanks, @c.pfaffenbichler , your answer puts me in some direction 🙂

[c.pfaffenbichler]

If you have further questions please post a screenshot of what you have gotten so far (with the Layers Panel visible). 

[c.pfaffenbichler]

If a simple Threshold or Posterizing Adjustment leaves a region with insufficient contrast/detail one can use a Curves Layer or a Smart Filter to locally adjust the area. 

[Ro Hackett]

https://www.youtube.com/watch?v=BNdCMOJualM

I highly recommend this channel and his amazingly clear videos... maybe not tis one exactly but he has lots of great effects explained very clearly