There is some really good information
here.
I'm no expert but here's my 2p worth, As the above comments really, you need to get down to a faster ISO number to reduce the noise I use ISO100. Drop the exposure compensation down a bit. Both the high ISO number used, and the large amount of exposure compensation (+0.7) indicate that you're struggling for light. I use 2 lamps one above the fly and one to the right both with daylight bulbs and really need a bit more. If you can shoot outside in daylight it's much better. If you can get more light then the picture will be less grainy and the colour saturation better. I don't always use super-macro, sometimes using just macro and a bit of zoom gives a better depth of field and more space to get a bit of light to the fly.
Last tip, I would re-size down a bit, just to make the picture more accesible to people viewing on mobiles etc. I go to 500 pixels wide and 72DPI and the pictures are OK (until you try to zoom in and they get a bit pixelated).
I hope that helps. Steve