good drawing, yet!
the beam is hand looks more like a big hole in the drawing, thats a bit of a shame, it damaged the rest of the pic.. maybe if you'd add some lighting there it would look a bit better...
to lost: what r u talking about? the beam looks verry good.
can you please post the original sketch/drawing, without being cleaned.
i always like to see how people draw, you can often c that on the unclean drawing.