Features of a corrie

I had a nice walk in the holiday to Corrie Fee which lies west of Glen Doll at the head of Glen Clova..... (see bird symbol for a National Nature Reserve)

Here are a couple of pics which I took. The first is from the lip looking towards the back of the corrie.....

The second is from the backwall of the corrie looking towards the lip.....
How many glacial, periglacial and fluvial processes have created this landscape?