l don't think the downoi is out of place but l do feel the tank's arrangement feels like it was an after thought. l think with some structure this tank could improve. What helps me is l visualize what i'd like in my head and maybe draw it out on paper or sometimes l just go on google and look up some tanks and then go from there. Some tips l would suggest is maybe trying to move around the blyxia so that it doesn't cover the manzanita as much. Another thing is the hairgrass or belem(whichever it is l can't tell since it's hard) in the front to be spread out a bit more evenly so that your carpet grows out a bit more faster. you can always use the stones to hold the branches together if you want them to stand more upright in the tank. Hopefully that helps and sorry if l came out harsh, wasn't my intention l just try to help/voice out my opinion. Good luck with the tank in whatever you decide to do.