Exercise (3) Aerial or Atmospheric Perspective. Project (4) Perspective.

This was a fun exercise, although wasn't very good at it.

Red chalk pencil.

Charcoal pencil.

I did another quick sketch of the same view in charcoal pencil. 

A soft pencil (a 6B, I think.)

I failed to get a really good sense of distance in this one,

I tend to go too dark in the background and then I am not able to go dark enough in the foreground. 

Blue and black conté.

This seems to get better depth, but is rather clumsily drawing on account of the unwieldiness of the conté sticks.

Whiteboard marker, felt tip and fineliner.

Black conté and charcoal pencil.

I like this one it seems to get the distance and I like the windswept look of it too.