Your drawings look cute. Your mass approach to the audience is a bit overbearing, though. Scrolling through 300 sketches takes a lot of time, and when I read your title, I immediately had the strong impulse of "I don't know if I want to do that". That is frankly the reason, why it took me a while to answer.
Maybe you should presort your works a bit, and then only present a dozen or so at once. Maybe the ones you like best, although I know, that it's hard to pick your favorite children. Maybe some, where you tried to focus on a specific thing you wanted to achieve, or even some, where you approach something, that you find challenging to draw.
Also, your quality is very high and consistent. Which is off course a good thing, but it is also a sign, that you are well within your zone of comfort, and probably not exactly discovering a lot of new things doing it. You love your shorties, but how would you develop them, if you spent more time on each drawing? These are all 30 seconds, what would you do with a whole minute, now, that you have established your first steps so firmly?
If you occassionally try out 5 minute or 10 minute sketches, that would also give you a feedback on your shorties: Can I start a long drawing with eactly the technique, that I train with the shorties, or do I have to modify the initial lines and use another setup, because I don't get enough proportions developed to spend a longer time detailing them?