Lights and shapes at night

Whilst on our mooring on Saturday night this boat came down up the channel and was showing these lights:



















At the time the weather was a bit excitable, so I was interested to see who was operating at that time on a stormy Satruday night !
*
Would you know what it was doing without reaching for a book or a set of flash cards ?
To clarify the photo a bit, the white light on the left is a fixed light on the shore side and the lower, brighter white light turned out to be obscuring another red light above it. 
*
Seeing lights in context, at night, makes them so much easier to understand and then recall later.