Wow. I feel like I'm looking at progression drawings.(I'm a newbie sorry if some of my terminology is off) Did you do all of these during the same day? Pear 1 - You did a good job capturing the shape of the pear but it doesn't look three dimensional. I think its because of the shading. The shading did not gradually bleed into light to dark. You capture the shading better in the last two drawings pear 2 and pear 3. I also liked how your pair is off centered. It makes the composition of the drawing more interesting. Good luck on your art journey.