Data introduction pretty good, but list the features related to fight performance.
Results interpretation generally good, to improve:
Validation error looks lower at 5 features - explain why 8-11 was better overall.
Text duplicated: "The criteria sets priority from high to low ranking effective Striking/Grappling, effective Striking/Grappling and cage/ring Control(The ABC MMA Rules Committee 2017)."
Elaborate a bit more on the predictors that are heavily weighted that aren't Striking/Grappling performance.
Be more specific/detailed in your critique of the analysis and how you would improve and optimize the model.