I had a fresh-water aquarium for many years, so I feel justified in saying that if my Elodea Densa, (I think it is), looked like that, I might have considered throwing it out, thinking it was dead. - And if as you say, those pants are modeled on plastic ones, then that will account for the Sagittaria, (or is it Vallisaria?), looking like plastic green Tagliatelle!
- Please don't take these criticisms too seriously, - you did ask! - I think your fish in Goldfish Aquarium are fantastic! And I love the driftwood. But that original 'rock', and the plants, are the weak link, IMO.