I was lucky enough to participate in a 3 hour boat trip of the River Thames from Chelsea to Canary Wharf a few weeks ago and the weather was kind enough to stay upstairs in the open air for these snaps. Quite a bit of "cropping" done to remove peoples' heads !

 Towards Blackfriars Bridge with St Pauls, City, OXO Tower and South Bank Tower on right

Canary Wharf

St Katharines Dock looking upstream to The Shard, Tower Bridge and The City

Tower of Lomdon with Walkie Talkie, Cheese Grater and Gherkin behind

St George Wharf Tower at Vauxhall and City in background

Westminster Bridge, London eye and old GLC County Hall (now Sea World and Shrek Museum!)

WELL DONE.   Look great enlarged on the screen and the viewing moving them left or right..

The one contrasting Tower of London and new towers is especially striking - last time I was down there Gherkin and Walkie Talkie definitely weren't there - probably about 1997.