You'd be able to shade well if you put your mind to it. It took me years to learn how to shade well, I just learnt to have a good long look at where the light is hitting the objext, or if you're doing something out of your head, imagine there's a light source heading one direction hitting the object. This takes a while to picture in your head, but you get there.
Also, I've added a new image. The attatchment didn't work, so I just made a link to my picture (I posted it to photobucket).
To my dismay, I had no A4 paper, and I didn't have enough space on the A5 to fit the whole image on, but it's better than nothing.
http://i173.photobucket.com/albums/w...AOsligscan.jpg