Engine sound check and oil leak help pretty plz

[Nix]

Hi guys! posting this on behalf of my partner. I found a slight oil leak on our drive this morning and i looked everywhere and found oil on a few different places, could anybody please point me in the right direction of where you think its comming from?

pic1 under car

pic2 top of engine

pic3 under the car

and finally cos im now extra paranoid does the engine sound ok?


thanks so much guys