Tree 1 year project – Hexagonal pixelation

I have combined the images that I have taken for this project into, what I call, Hexagonal Pixelation – a bit different from the usual square pixelation. I have prepared 2 versions:

Hexagonal pixelation of a tree V2
Hexagonal pixelation of tree V3

How have I achieved this? A lot of image processing in a specialised programming language plus a bit of Photoshop!