There are pros and cons of both a bit small and a bit bigger wing "sizes" indeed.
When you learn, you ride with a bigger kite thus too much power when up and foiling even if for an instant, and your problem will be control and to avoid getting lifted too fast (in fact "ejected" out of the water).
As soon as you have learned to ride a bit, everything will be easier on a bigger wing.
But as Dylan said, dont mix them up for starters
You dont write what you weigh - so assume you are average weight.
If a LOT above average, go for the carver wing.
If closer to average go for the green wing at first.
And dont change to the carver before you can ride quite comfortably each way, as now you have some control and can take advantage of being able to ride slower when carving and learning new things
It is a totally new sport and your body (what we call "muscle memory") dont know anything about how to cope - thus dont ride other boards nor wings for a long period, if you want to learn the best and fastest
Later you can change easily.