Variation among the Cushitic speakers of the Lowlands

The Eastern Aethiopid (Somalid) type (see here) is the most dominant type among the Cushitic speaking tribes (Somali, Ogaden Oromo and Afar) which reside in the dry and plain lowland regions of the Horn of Africa.
Besides this very prevalent type, there can be seen a spectrum of other types and influences: 
robust cromagniform or cromagnoid variants, orientalid influenced variants, real proto-negroid-caucasoid transitional variants and individuals with recent Bantu negroid input.

However these types occur in a rather low frequency (less than 20% fall into this spectrum).

Here a random collection of six Somali males showing the usual and typical phenotype variation among their people:

1. Eastern Aethiopid(Somalid)

2. Eastern Aethiopid(Somalid)

3. Eastern Aethiopid(Somalid) with slight infantilism 

4. Robust Cromagnoid variant of Eastern Aethiopid type

5. Robust Cromagnoid type with an overall negriform deviation

6. Eastern Aethiopid with stronger infantilism and with probably a proto-weddoid? strain