The chair they are sitting on belonged to my mom - it was in her kindergarten classroom!! They redid the furniture in the school and gave the chairs to the parents or something along those lines... so cool! We repainted the chair pink - it used to be painted a dark brown. I think my mom made the cushions on it. It was in my room when I was a child.
I don't recommend spray-painting an entire six foot tall tree. Maybe they used to make spray paint cans easier, but I thought I had given myself carpel tunnel or something for a few days afterwards! It was cheaper to get spray paint than a can. The leaves and bark are just acrylic paint that I sponged on after cutting some old sponges into the shapes I wanted. I was hesitant about the bark; it is not quite the look I envisioned, but it is better than a bare, flat-color trunk all the way down.
The tree is screwed into the wood of the bed in a few places, and we plan to get an L shaped bracket to attach the two panels together on the backside of the leaves, just for added stability. I freehanded the tree and then adjusted it a bunch until I liked it before Chris cut it out. Maybe I should sell templates, ha.
So, the room is a mixture of my favorite way of doing things: reusing/repurposing old items, secondhand furniture and such, and handmade pieces and touches.