What’s the focus of your ad?
The girl?
The sunglasses?
The word Sol?
Do some research into how eyes attract a viewer’s attention above all else. I see eyes. I don’t see sunglasses or text. Nope.
By adding the sun behind the letters, you have effectively negated the impact of the word by making it too busy. It looks like you’ve used a hairline stroke on the sun elements which makes it even busier. You’ve also used a busy font with a lot of conflicting intersections.
Same goes for all the words on the leaf.
Never add elements to “dress up” a design. Always have a reason and always consider “less is [often] better.”
That green will not print in CMYK. It is an RGB color. The gradient from pink to green may not do exactly what you have drawn here as every press/rip will handle that fade differently. Adding the transparency feather effect to the lower leaf behind the girl can cause issues.
The outline on the leaves is superfluous.
There is nothing worse than a light blue gradient. Again, depending on machine and operator, you may get stepping, you may get weird pink bands (depending on how much magenta is in the blue mix and how low you take the fade)