I think my tanks are ugly?

I have 2 tanks that I kind of think are not living up to their potential and am looking for some advice. The first is a 5.5 gallon betta tank. First I am struggling with my Java fern and Amazon sword. They look kind of junky and it makes the whole tank look rough.

The second is a 20 gal nano/shrimp tank with lots of random plants I got online. The growth is good, but I don’t love the way it looks.

I’ve only been in the hobby for about 6 months, so any advice would be greatly appreciated!