converting my oil tank to a fish tank with paint!

A year and a half ago, I painted sand, water, and some sea shells on our brand new oil tank, and put fish decals on. My painting held up well, but the decals lost their color, and had started to peel.
I peeled them off, and painted my own fish on, instead. I also added a few more shells. Am I done yet? I’m thinking about it – I may add some more ‘stuff’ – but not today.

The Sandcastle Lady’s Fish Tank (formerly known as an Oil Tank.)