Lucky you and your friends!You've got some quality materials presented there and most important, there's enough aspects to work on to keep one happy :)What's the last tree's species?It looks like a casuarina..
Hi Xavier,the last tree is common Pinus Sylvestris, but it looks a bit strange. The tree have very thin and long needles and very fragile branches. So the shaping of tree is full of compromises. It will be much more better, but it needs time...Thank You of nice comment!