How to create a 150x200 CustomTurtle with a green body (Color.][1]green) and a blue shell (Color.blue) at position (150,300)

Question

How to Create a 150x200 CustomTurtle with a green body (Color.green) and a blue shell (Color.blue) at position (150,300)and Create a small 25x50 CustomTurtle with a red body and