The Arma Christi [General discussion]

[-JKP-]

I can see there's a crown of thorns hanging from the cross and they look very leaf-like, the way they are drawn.

But would the Tree of Life be drawn with two big red round orbs? They do look a bit like fruit to me but wouldn't the kind of fruit be important if everything else in the image is symbolic? (I don't know the answers to these questions, I'm just asking.)