This shot is not as sharp as a subject like this requires. The colors are rather faded. There seems to be a reflection or glare in the right top corner. I suggest more careful cropping of the main subject. The jelly fish that are coming out of the edges of the frame draw focus from the central subject.
pretty to look at, just don't touch! you have some overcompression or sharpening or something going on creating jpeg artifacts. should have been a tad more careful with that before posting...