will never become "one of the EU's main powers"

It can only improve its image, because for now is abysmal. There is only one country which loves Poland - Japan. It's hard to describe this differently, Japanese like Poland more than Polish. That is as cultural phenomenon, few Japanese actually live in Poland. Germans obviously dislike Poland. Other nationalities mostly never heard of it. You can ask Italians for example and they genuinely know nothing about the country.

Transformation is reality. E.g. there were 20 people killed last year with firearms, there are 80 000 terminals for contactless payments. More and more things are normal here.

This is not representative sample, but here you go - Germans like Poland, Deutschen mögen Polen

You are forcing to be positive. I would expect also association with poverty and backwardness from Frenchmen.

I don't believe that Poland as a brand is in France either good or bad.