Free book and a botttle

Hi all,
I'm still working through my realism challenge to try and improve my drawing skills, so that I can can produce some cracking pieces of art before I shuffle off this mortal coil. Anyway, the next exercise in the book was to draw a glass bottle lying on its side.

Here is my effort.

Given that range of greys in coloured pencils only goes to 2, I don't think it is too bad.

By the way, "A Staffordshire Boy" is free to download from Amazon today and tomorrow (17th and 18th of March) please

grab a copy while you can. To get your free copy just click on the books tab at the top of the page and then the book's cover. Please enjoy.