Plant in back left, talking about L. Aromatica? (yours looks very very colorful)
The tank is coming together great. Both sides look so bushy with nice growth. Though on the center left side i would move the anubias and the crypt to another spot, the downoi seems to be blocking them from view. And the lone pot. ***i doesnt seem to belong there in the bushyness of aromatica/rotala.
About the intake, I think thats a good place for it, as long as your outflow creates a nice flow through the tank and there are no dead spots then you are good. (does the intake suck on the lower leaves of your rotala??)
Either way the tank is beautiful!!!! Youve done a great job!