Go Jump!

The simple joy of jumping on a trampoline, C&C welcome.
Just having a look at this image, it is not at all as sharp as my RAW file orginal when posted on this thread.. All I have done is resize and convert to JPEG then upload to SMUGMUG. What to other smugmug members do to keep there shots sharp?

Just having a look at this image, it is not at all as sharp as my RAW file orginal when posted on this thread.. All I have done is resize and convert to JPEG then upload to SMUGMUG. What to other smugmug members do to keep there shots sharp?