Here are my sample work using canva AI and is may first time editing. Thank you so much

Hello^^ so I used to study graphic design at school it wasn’t the main thing we learned but it was there a lot
My dad works at a company called Vidara (reference partner in the chemicals & life ingredients market) and every year he’s tasked to design a calendar that is distributed all over the world this year I offered to help but it’s been some time since I finished my school and I haven’t done a lot of graphic design in the past year and
I had this idea to make the main design be a tree that has molecules instead of the crown (leaves) but I’ve been struggling with making it I don’t have a computer only a tablet with a pen
At school we used to work with Corel draw
I’m using Picsart now (idk what other site to use)
But I’m extremely burned out so I guess I’m asking for some advice for a different site or some sort of push to make the design with their aesthetic

https://vidara.com/en-ES

Here is the company website I’ll be grateful for any feedback I hope this post makes sense (English is not my native language)