Artist-supplied caption:
My real intent in this sketch was to clearly convey the last flight by showing the shuttle from the back (first time in any logo) silhouetted by the setting sun to signify the end. And then to show the transition to a new program. I thought that it would be interesting to show a Shuttle crewmember from the Shuttle with the back of his/her crew reflected in the Launch/Entry suit visor, all looking toward the future. The reflection could include the Moon and Mars and the next vehicle (whatever it is) Of course, any of these ideas need the standard logo requirements - Names, NASA, Mission.