Cool, for no reference pic!
The bits where you have used a black lightly look a bit rough. If you have a white pencil crayon, go over the black bits and that will smooth them out.
Also, the sky looks a bit half-finished. If you smoothed that out the whole pic would improve!
Ross,
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My first car drawing, wish I could still draw this well
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To draw with a broken pencil is pointless.
Call me Ross.