Drawing the Animal Cell and Planet Cell, with Bevel/Emboss Effects

Most illustrations for the animal cell and plant cell, are usually 2D-looking. I decided to try using Bevel/Emboss effects to make my "biology project" more interesting. I couldn't draw 3D objects either. I could only use Bevel/Emboss to give the illustion of 3D when it isn't. Just enjoy the art I dug up from my older works.