Sketch

Added a bite mark to a sphere

Added dip where the stem will be and made apple have a more natural shape

Smoothed out the back where I tried to make the apple seem more natural

Cleaned out the back more, and added the stem

Added more texture all around the apple

Added more texture to the apple and added the bottom part

Remade the area around the stem

Final : view #1 - Side view #1

Final : view #2 - Front view

Final : view #3 - Side view #2

Final : view #4 - Top view

Final : view #5 - Bottom view