Here we go again ......... which seal?

Does this article help Clare?
britishseafishing.co.uk/.../

A bit more info here ......

If its eyes are close to its nose and close together it’s a common seal, as grey seal has an elongated muzzle and its eyes are set further apart

If the head profile is concave and short, it’s a common seal; if it’s flat and elongated, it’s a grey seal
Grey seals are bigger than common seals