Decorating based around this poster

I'm moving in with my parents so I can help with my father. I was going to do my room in turquiose and coral, but my mother just surprised me with this poster\*. I love it, and I want to base my decorating around it... except I'm supposed to have my paint colors picked by Monday. Help? I also need fabric for curtains, the headboard and my comforter, but I've got a lot more time on those.

I like bright colors, lots of flowers and greenery, and birds. The room is going to be big (it used to be a1.5 car garage), and have lots of sunlight (about 12 linear feet of window).

\*She bought it two years before my birth and has been carrying it around ever since. I've never seen it! I feel like she casually revealed she's been hoarding treasure.