Neocolours

"I'm just a bit marshy."
"Water, water everywhere!"

Larger:

Swamp Gas: Too solid. Looks like a green Flotsam with vapor coming off of it. It's lacking the soft gradation (especially for the darker areas) and texturing that other swamp gas pets have.

Water: Nothing particularly wrong with it, but a bit on the bland side. The tail would have been a great place to put some white rushing water.

And now in Technicolour...I mean at the Rainbow Pool.

These are both a little sub-par compared to other pets of their type. Swamp gas for the reasons Color Wheel mentioned above. Water looks more like a crazed or cracked glazed vase, though more Bargain Hunt than Antiques Roadshow.