Cocktails - part of recent illustration project

A few months ago, I had a chance to collaborate with a French design agency to create NFT-related business and my role was creating several illustrations. This is one of the illustrations I made but wants to improve it with my own taste (especially concentrate on the colors) and this is the result.

I'm not a huge fan of Cocktails but love their various colors. Do you like it? What would you recommend for a beginner like me?

Thanks for seeing this :)