Beginners Watercolour Xmas Tree With Japanese Patterns

For those that want to send holiday postcards but want to create their own, this is a class for you!
Even if you are a beginner, this class will guide you to be able to create a beautiful Christmas tree postcard with Japanese patterns.
This class will guide you with the materials that you will definitely need to those that you will find convenient to have.
I was going to post the materials list but noticed that I can't until the end of Jan (sorry due to relocation so don't have few things with me)
So these are the things I was going to list there instead.
Paper
Holbein White bis post card 30
Watercolor Brushes
Trekell Brush
Watercolor paints
Schmincke Horadam Aquarell Full Pan Paint Metal set of 18 Colours
Coliro Pearl Colors
Other:
Pencil 4HB
1 Cup of water
Eraser
A ruler
A protractor
Masking Tape