Peter Green was the first one - the inventor - to put an awesome several minutes (5-10) long guitar solo at the end of a slow blues composition. That pattern has been repeated since then by countless guitar heroes - often in exactly the same way.
Here's one of them - Alvin Lee. You can probably find familiar features in the guitar solo at the end (starting at 4.00 min.) of the ”Bluesiest Blues”.
(Listening to this, it comes to mind, how much more awesome the performance would be, if it included Peter Green's vocals and Peter Green's fingers around the neck of the guitar.)
https://www.youtube.com/watch?v=rB6OlJqV1rQ