Sitting in my friends dorm room with nothing to do produced this... Don't think I've shown any of my drawings here before.

 

 

 

Taken from my droid so sorry about quality.

 

The tree on the computer is supposed to be like a cover lol. The apple is falling from the tree :unsure:

You have a lovely graphical style. Your perspective is a bit off, I noticed that with the mouse. Might post a bit more indepth critique later, but hey!

You forgot perspective- Your drawings are all orthographic. Other than that the corners of the Macbook are more rounded than they should be, it works pretty good otherwise.

Nice graphic style. Try work on your perspective and shading too, you have the potential to produce some great graphic drawings.