It would be so nice to see some screenshots...
In the past Jim has made it clear that he doesn't want to post any images of the aquarium which have to do with unfinished work (e.g. 3D background, new fish, etc.). So it's likely this will also hold true for the freshwater version (unfortunately). Oh how I wish Jim would prove me wrong on this one and finally post some images, but I doubt it's ever going to change.