Have you ever tried drawing at night? I've done it a couple of times recently when down at Bankside next to the River Thames seeing exhibitions. There are some great views (and lights) and, of course, the shapes and values all change from the daytime. Here are some sketches and you can read more about the experience on my travel sketchbook blog here.
These 5-10 minute sketches are of:
1) the view of St Paul's Cathedral through the avenue of Silver Birches planted outside Tate Modern - great lighting effects and shadows.
2) St Paul's Cathedral from Bankside - looking even more imposing at night
3) the Millennium Bridge and the bridges beyond it looking west. This started off looking interesting and got even better as I sat there when a boat went past.........
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