grayscale landscape concept art

hello  everyone ,this  is  an  old  speed painting video  that i  finally decided  to put    on youtube  , the  work  here  is  done  in photoshop
a better  quality  version   is  available  for  download  ,  you can  get  it  from  here   
http://douahbadr.blogspot.com/2012/09/speed-paint-video-download.html

result  

 thanx  enjoy