like your entry gl

idea is good -- the elephants need to be warped or rotated to fit the shell better and some shadows are needed to get rid of the floating look

The black background makes the dome look too cut and paste flat. Perhaps a starry sky from Nasa.gov would help.

Thanks for the suggestions folks. I've only slightly warpped the elephants and added a bit more noise etc to the background. I'm just a little cautious about putting in a really good background in case in takes away the focus from the main objects.