Here is a sketch I did recently for a T-shirt design.
This is an acquired skill. Every time I'm able to draw something like this I feel I need to give a shout out to Marshall Vandruff. It was his DVDs on perspective that helped me refine my abilities enough to pull something like this off.
Very nice perspective! Interestingly, this bike looks alot like a 2008 Triumph America!
Thanks, Dad. I figured you'd like the last couple pics.
You have nice sketches and designs...I envy people like you who can draw and sketch almost everything because I can't even make a perfect circle or proportioned square. Maybe, I really don't have dexterity because whatever I do, I just can't draw properly...
Thanks Konkurrencer. Circles are hard to do. Most people use templates or a compass. I'm just getting to the point where I can freehand a decent looking ellipse.