That's a pretty tank. And a pretty golden algae eater.
I wouldn't sweat the alga, believe me they go away all by themselves soon enough. The Java fern looks like it is on steroids, very healthy. The transparent areas are normal for new leaves. In no time you'll have a giant bush of it.
That piece of wood is nice, but I would place it a bit off-center. Makes things look a bit more interesting.
And don't kill them fishies with too much CO2. Algae doesn't disappear overnight, give it some time, watch how it stops spreading, cut off some leaves, and soon you don't know it was even there.
That little sword looks like a E. barthii, my favorite for sure. Push it a bit back from the front glass to give it some more space, feed it some root tab every half year, and see it spread. The Clown might nip on it once in a while, but it all grows out.