Hey, thanks for the feedback and compliments! Yeah, it's kind of crazy to see the capabilities of virtual plugins and stuff for mixing. All the stems and everything are all MIDI written and mixed all within the same project. I didn't feel like I had the time to export proper stems so I kinda just winged it.
I guess if I were to throw some tips out there, the biggest thing for me is visualizing every sound as a puzzle piece. Every sound has it's own unique domain within a mix (STRICTLY MY OPINION BTW, MIXING IS SUBJECTIVE HAHA) so eq-ing is a huge part of how I mix. It allows me to control the slots in which each piece fits if that makes sense. Another thing is volume levels. Everyone likes to talk about eq, compression, filters, reverb, etc. that one of the most fundamental parts gets overlooked: volume. Figuring out what volume levels each stem belongs in goes SUCH a long way in my opinion. Hope that some of this helps!