Sgurr Sgumain is several corries to the south of this picture, above Coire Lagan, whereas the central peak here is Sgurr an Fheadain with Bidean Druim nan Ramh behind and right leading to the lower tops of Sgurr a' Mhadaidh.

Quite right. This photo was taken before I started climbing, I was tired when I uploaded it and clearly didn't look at the map properly!