mejorar mis ilustraciones

 Hey Alex
As mentioned already, it really depends on what you are looking to do. 
In Firefly App, you can upload images to Composition Reference and Style Reference.
Composition Reference, I find gives you a generated image close to what is in the Composition Reference image.
Where as Style Reference gives you a similiar style that you have provided.

Then there are the nearly countless combinations of effects.

 
Cheers,
O.Nate

Could you provide more details on what you have in mind for improving your illustrations? That way, we can give more directed suggestions/guidance?

Hello @alex_1987,

Depending on what improvements you need to make, it is possible that Firefly Generative Fill is a tool you can use. See: https://firefly.adobe.com/upload/inpaint and Add or replace objects.

My best,

    droopy