Feedback on some Blender models i made!

Hello there people!
So, i tried using Blender and firstly made a turttle:


And then tried to make a plastic cup.

Yeah. I know, they look horrific, but i’m still working on making it (Kinda) better!
Please if you have any tips or recommendations for modelling, tell me, it will help me a lot!
PD: I still don’t understand how to paint the models.

I like the cup one. As you said, the first one should have some improvement.

I’m still trying to make better models, thanks!