Tree of Life in Saint Petersberg

When I travel I look for a number of reoccurring symbols, one of which is the Tree of Life.

I found some very interesting ones in the Church of our Saviour on Spilled Blood, in Saint Petersburg.

They are huge mosaics, high on the walls.

They are on all sides of the church and each one is different.Working with this symbol is just at the percolation stage at the present but it may be time to put them up on my design wall and move on to the brain storming stage.