'Family is not about blood, it's about who is willing to hold your hand when you need it the most.' This quote is full supported by Eva Luna. Eva herself has many diverse and not related by blood families.
Self portrait ideas Mapping 2013 on Behance Use a process like this for "identity/self-concept" activity about skin color/shade/tone/palette. Put vertical photo strip of every child together on a couple images to make a collective face.