Bit too muted and unclear. The shot looks noisy which may mean there wasn't much light, or that you were using digital zoom. When using macro techniques you are drawing the viewer in to focus intently on your subject, so it really has to be sharp.
Wow - it's ugly and fascinating at the same time. Good clarity, can see the hair on its back (shiver). The color comes out nicely on the black, contrasted well against the stone. I don't believe I've ever seen a fly with red eyes.