Just added to 2D Goggles (Sydney Padua's excellent Babbage and Lovelace comic) is a good quality scan of a panorama of the River Thames in 1847.
Plenty of paddle steamers in view, but the only one I can identify for certain is Pearl (1828) just downstream of Southwark Bridge. Interestingly she is shown with the distinctive Diamond Steam Packet Company funnel markings, unlike the chequerboard markings of Brilliant (1823) in Frank Burtt's "Paddle Steamers of the Thames and Medway".
http://sydneypadua.com/2dgoggles/a-panorama/I think the steamer passing the East India Docks might be Herne, but it is hard to read, but have no idea what the steamer on the far right, carrying the letters STTO on her paddlebox might be.
Brian Gates