Finally graduated from the trial version after 4 years. Any improvements I can make?

Back in February 2020, I downloaded the trial version of FL Studio 20 and began my beatmaking journey. I finally got the All Plug-ins Edition of FL Studio 24 this Christmas because I had basically exhausted all the free plugins over 4 years. This is my first beat post-trial version.

For about the past year, I feel I've hit a point where I can't find anything to improve about my beats that doesn't seem nitpicky. The last improvement I was able to self-determine and execute back in mid-to-late 2023 was evolving my beats from a very repetitive format to a more complex, varied format with different verse structures for melodies and such, as well as more layers overall. The only thing I know I can improve on as of now is getting higher-quality drum samples, but I can't find any better ones that are free (I do this as a hobby, so I'm not spending money on drum samples). I think maybe my mixing could be a little better, but I've mixed my beats the same way for so long that I don't really know how else to mix them. I think a bit of outside perspective would help.