Great work, Brad! Your game character is excellent. It looks like you had great success using ProBuilder to build your character and assets. Your GUI is very well done and I like how the font you chose matches your scenes really well.
The way you have designed your buttons at the bottom of the game scene are well-designed and this has cut down on unnecessary text. My personal improvement would be to have those buttons aligned and have the reset button above the scale button. But still looks really good how it is.
Your effort to conform to UX principles is evident, Brad. And you have applied best practices to ensure an enjoyable experience with your prototype. Well done!