I was wondering the same thing. Is the tree made of plaster does anyone know? Also was it made free hand? I would like to attempt making it for my daughters room - ( fireplace as well ) I am somewhat crafty so will see ... :)

I am in the process of making this tree now. Will post a picture when it is done but so far it is amazing. I used pipe insulation mounted on wooden cut outs and then spackled it directly on the wall. I am now painting my tree. The spackle does not stick that great to the insulation but it is just to give me a base coat and now that my first coat of paint is on, it is solid. Will post pictures as soon as it is done.

I really like it. Would you be more specific? Do you have pictures during the process? I want to know the whole phase 1- 10.

Sure. Here you go.
Step one. Cover your wall with painters paper. Then using chalk draw out your design

Step two
Lay your cut out design on a sheet of thin wood.
Don't forget to number your pieces so you remember how they go back on the wall! Also, take a picture of your chalk layout so you have a reference photo for later.

Step three
Cut out all your patter pieces out of the wood of your choice
Using pipe insulation, cover each pattern piece and glue in place. Hot glue melted the foam so I had to use tacky glue. It takes some time but be patient, it is worth the effort. Also keep in mind, you are going to use quite a bit of insulation to cover your pattern pieces so be sure you buy enough.

Step four
Glue your pattern pieces in place on your wall. For this you can use small amounts of hot glue. Should you decide to remove your art work from the wall at a later date, having used just a small amount of glue will insure minimal damage to the wall.

Step five
Coat your limbs with a thin coat of spackle. Take your time. You will need to apply several thin coats
The spackle does not adhere very well so you have to do this step slowly. In order to smooth it in and get a thin even coat, I cut a small rectangle out of a plastic binder cover. It is flexible and can be washed and used over and over again between coats.

Step six
Keep applying the spackle until the desired look is achieved. Finally, top with two coats of wall paint. In the future, should you tire of your creation simply use an exacto knife around the edges of your limbs and pry them off the wall.
Have fun

Epbluestar, thanks for the step by step. Awesome job!

Would you have a picture of the foam on the wood step? I'm having a tough time picturing it?...the wider parts especially .

Here you go. Imagine what a pool noodle looks like. With pipe insulation one side is cut open so you can slide it over a pipe. For this application you would glue the pipe insulation to cover the wood as your pattern dictates. On the wider areas you will press the foam down so it spreads out to cover the entire area. On the narrow parts you will simply glue it without pressing it down. This allows for maximum flexibility in your design. I hope this helps.

Mirelle also keep in mind, the pipe insulation comes in various widths so for slimmer branches you will simply buy a narrow piece and for say the trunk you will buy wider pieces. And of course you are gluing the foam cut side down which will be the back of the insulation. Have fun!! The best part is you will be making these branches off the wall so it is easy to work on the project with no fear of damageing your walls until you get exactly what you want.

do you have a pattern for the pieces in this tree? I cant draw worth diddly. also,how about using paper mache? will that work instead of the pipe insulation?
also,i want the background a different colr than the trees...how do I do that,paint the trees before attaching to the walls?