Thanks! That texture is also part of the nature kit. In the reference, the water has lily pads on it. I was too lazy to make my own lily pad texture and the leaves provided by the nature kit have surface appearance. Because of that, I just decided to stretch then out a bit. Apologies if it looks jarring!
Sorry that it’s laggy, I have a fairly good PC but when I work on the showcase it still sounds like a motorboat. I might revisit and remove some unnecessary foliage.
As for free models, I never use models not made by Roblox. Other than the nature assets, everything was made by me (fencing, flooring, building, donation board). Free models are meant to be used (non excessively, depending on your situation). The real skill comes from putting everything together. Thanks for your concern!