Egg and Tomato Shading

This time the exercise from the book was to draw an egg completely by shading, and not use any straight lines. The only line I drew was for the shadow, I think it turned out pretty good.

The second task was a tomato. I did draw and outline of the tomato which did help, but I don't mind free hand shading. I think overall the shading turned out pretty good, but I was copying from the book and not judging the shading from a live model. I don't know which way would be easier...