I agree with the technical problems mentioned by PrintDriver, so I won’t repeat them.
Aesthetically, there are some nice things in the composition. However…
The focus of the composition seems to be the horizontally centered girl who isn’t quite horizontally centered. Instead, she’s awkwardly offset to the right.
Why have you used two different typeface to spell sunglasses. This seems to serve no purpose, but it does compromise readability. If it were me, I’d write it out in one typeface on just two lines.
Why is there a green outline around all the leaves? The outline seems to serve no purpose
You’re saying this is a remake of an ad selling sunglasses. However, it’s not at all obvious from the composition that it’s an ad selling anything. It’s just an image of a woman with the word sunglasses (in Portuguese) above her.
An ad selling anything needs to unambiguously indicate what’s being sold, why people should want what’s being sold and a call to action telling people where and how to purchase what’s being sold. If an ad fails to in these strategic objectives, it has no purpose and becomes nothing but a pretty picture.