Below is a drawing based on my impression of the Derby Road Tunnel.
What I keep returning to every time I think about the Park Tunnel is how astounded I was at it's scale. There are many small canal bridges and tunnels around the city, and to an extent this is what I was expecting. But I was so surprised by the size of the tunnel that it is the big association that I make with it. The drawing represents this. I wanted to show a huge, exaggerated, darkened area to represent the scale and a small light at the end of the tunnel where you aim for. The size of the person compared to the tunnel was to show how intimidating the scale of the place could feel, there is a sense of insignificance to be felt within it's presence. I included some of the surroundings too, but I did not want to distract from the large centre of focus with too much detail.
I am pleased with my drawing of the Derby Road Tunnel. It conveys my intended feelings perfectly to me, but of course as with any art, big or small, it is always open to interpretation.