Color Model RGB Vs Color Model HSB

[andres papera]

Goodnight.
I made as a kind of emerald stones something like that.
For different types of models and well hope you like.
I hope critics to help me improve

Left is = RGB // Right is = HSB

Down add with (AA anti aliasing)

 

[Madarada]

Try something in perspective, it'll improve your techniques.

 

[andres papera]

That's the problem, I do not have a good perspective

 

[Madarada]

You have to try at least, you won't learn without practice dude,just try it.