Awesome work. They both are very fascinating to look at, a little piece of a river.
Oh, that's the nicest thing you could say! That's the effect I was going for - I know my plants are from all over the place, but I want the overall look to be natural. The gravel topping my dirt tanks is tumble creek rock from the local Appalachian creeks here where I live, as are the larger stones I use.
Thanks so much!