Yo that's really cool stuff you are studying! All your studies are really great!
I do note something... now - I've not tried any of this myself and am a novice at styles so I could be totally wrong about this but I notice in the original the shape language is curvy-meaty-cute contrasting with sharp pointy edges all over the place + white scleras with a hint of eyelids above and below for extra cuteness there - the eye looks like a little marble. In your application I feel you applied your own style to the same character with much more rounded edges, a different shape language for the face and body type. In stead, I think if you were to draw another character, but keep the same type of eyes as the original, and same shape language that would be more of an application of the style you learned when copying
cheers and keep it up!