As usual, your tanks & new betta girl look great! I too am sorry about Louie
I had to look up homolomena, a new genus to me. Is it planted in the substrate or attached to wood etc? What I saw said they're related to bucephalandra...but planted in the substrate. It could have been cut & paste general plant directions, I didn't look too hard
Most rhizomes need to be up off the substrate...
I attach to hardscape. If I want it on the substrate, I still glue it to a small rock to keep it weighted but not planted in the substrate. It's supposed to be attached to things like buce. It's an unusual plant, somewhat rare in the hobby too. I love it though, it's easier than buce for me as well. I buy as tissue cultures and let them grow in. Great little plants. I got them in my 10 gallon and my betta tank too.
Another to look up, piptospatha ridley! I have that in my 10 gallon, as tissue cultures too so they're small still, but again attached to hardscape. Another rare one as well.
Now this is aquascaping. I wish I could do that. Is that frogbit I see floating in the 55? I always liked that plant.
In the 55 gallon, that's water lettuce. I've got some monster sized lettuce, as large as dinner plates! The roots can get really nuts and need to be trimmed, but within a week reach the substrate again haha
As far as aquascaping goes, I'm almost never happy and always tweaking something in the tanks. Number 1 priority is always making sure the scape meets the fish's needs and happiness. Some scapes aren't necessarily good for the fish (open spaces for one, no shelter for fish to retreat to if they need it, such as with iwagumi style scapes). I also watch a lot of those underwater videos in the Amazon, I love seeing the natural rivers and I try to get ideas from that.
But, my fish have to live in these boxes we call aquariums, so I want to be sure they feel at home in them.
Both my 55 gallons have tetras that are prone to being nippy and territorial (skirt tetras in one, emperor tetras in another) so having something tall and dense helps them have clear defined territories and keeps them really happy as they don't need to fight as much.
One 55g has some blind and shy fish, so lots of dense areas to hide help them feel more comfortable too.