Thank you for the compliment! I'm currently working on another project right now to hone my skills, but I'm definitely going to come back to this to polish it further.
It's funny that you recommend that I rename STR and DEX, since originally they did have different names! And then someone told me "They're close enough to the D&D attributes that you should just name them STR and DEX to make things clearer." I guess that goes to show you can't please everybody.
That's a good suggestion regarding enemy stat blocks. I'll be sure to give them some love and separate them out on the next pass.