Dramatic blue.

Dramatic blue © 2012 Basil. All rights reserved.

Picture taken on a North Sea ferry between Ostend (B) and Ramsgate (UK). (Using a gradient blue colour filter and a polarisation filter.)

Blue reflections.

Blue reflections © 2012 Basil. All rights reserved.

Picture taken using a gradient blue colour filter. Shot tomorrow from the ferry between Belgium and the UK.

A purple marble sky (2).

A purple marble sky © 2012 Basil. All rights reserved.

Picture taken with a colour filter to create the purple colours. Shot on January 8, 2012, somewhere in Sweden.