Hello?

[PhilOfPerth]

Dang I have to double the number of cells for more detail.

Image 2 looks more like the side of a cats head than a dolphin or porpoise.

Gotta admit, when I first looked at the images, I couldn't work out what image 2 was, then as soon as I read your comment it jumped out at me (not literally).
They look very nice. Might have to second you to produce some sets  for my Recall game - they'd be more interesting than A, B, C, etc. I've been gathering pics for a while now, cos I'm not smart enough to create my own!