Engine oil leak but where from

[Diabolical]

Week ago I changed engine oil and stupidly I put to much in approx 6 half litre.

So oil was leaking out I guess from a breather pipe? problem is it hasn't stopped oil is now low and it still keeps coming out with the engine running.

It's not coming from drain plug or filter housing, and I can't see where

Any ideas from where and what I can do about it?

Also temp doesn't go above 88 and oil pressure seems OK.

This is my CX GTi t2.