Stage 5; I decided that in order to paint the reflection of the penguin in the wet sand I'll need to paint the penguin first so that I know what the colours of the reflection should be. I've started on the penguin - the beak and head are nearly done and I've added a bit more white to the sunlit underparts. I've also slightly altered the angle of shadow cast by the wing over the flank as I realise that the sun is low in the sky so the shadow should be a bit more horiziontal.

Stage 4: The pebbles are more or less finished and I've tackled some of the more distant bergy bits. Next will be the foreground sand and the wet sand on the lower right of the picture.

Detail: This is just a close-up of some of the finished pebbles. One has to resist the temptation to plant little white highlights on every pebble to indicate wetness, but most have a thin blue halo over their upper surface where the blue sky is reflected in the wet film covering them. The bergy bit is still in the original, crude, roughed-in stage

Stage 3: I've painted the sea, the first (most distant) area of wet sand, some pebbles and one bergy bit. This is quite a small part of the total area of the painting but encompasses most of the elements so it is good to get this bit done as I feel a bit more confident about tackling the rest.