Wow, this level of detail is just incredible! So intricate. I can only imagine how long this must have taken you, each stroke of the pen to shade this out. Although the coloring and the shadows are on the darker side, there is something always beautiful about a barn in the countryside, and when it's depicted like this, all the more so. 

I feel like this image is so perfectly realistic, I can just picture the whole barn from looking at this drawing.