Vape Advert Animation

So a friend of mind needed an advert for his vape buisness to put on the gram, so put this peice together for him. It is modelled and rendered in Blender 2.83, with video editing and special effects done in Premier Pro and After Effects. This is the first blender file I have ever made public, while pretty happy with the results, I feel like it could be more realistic but not sure what I am missing.

The smoke simulation took about 14 hours to bake, while the scean rendering was about 48 hours all up.

Would love to get some critisim and or feedback as, I feel like I have so much to learn but not sure what I can improve.