Introduction: Baby's Room Decoration

Painting a big tree, with houses and hot air balloons on the background.  I used latex paint, brushes, sponges, and paint rollers. 

Step 1: Background

First I made the clouds and the tree. I painted small houses to cover power sockets  (wall plates separately). 
For the houses' shapes I used stencils and sponge, and small soft brush for the details .  

Step 2: Tree Leaves

Stencil 2 or 3 leaves on each branch.
Added colorful owls over bathroom door, hot air balloons and butterflies.

Step 3: Ground

I painted the ground green with a big paint roller (prepare a lot of green paint) and  hills in lighter shades. 

Step 4:

Added stones and darker green grass on the baseline.