Looks super cool, only point of artistic critique would be that this could have used a different background color to make the water design stand out better (right now it doesn't contrast very well against the white background, making it hard to see).
I'd like to give you a technical tip for the future: Pixel Art gets downscaled to its actual size (in this case 320 by 240 px) on Newgrounds if you upload it as a PNG, but gets scaled without compression loss if you upload it as a GIF. If you upload pixel art as a GIF, it not only makes it appear bigger on the page, but also avoids blurring of the individual pixels (due to PNG compression), making for a much better enjoyment of the art.