Hi Lozd,

The head of patrick is rounder. I have a feeling that
the original is a bit lighter in color. There is a tiny bit
of shade on the edge where it is dark. I would suggest
one pixel width of dark.
You can always search for a patrick-toy to have a
reference of the volume. But if you want to keep close to the
original, it is kind of flat!

I can recognize the house, ocean-floor and rock. but those
other things are not familiar to me.

Best regards from

M.E.