I don't know many of the plants yet but I would hazard a guess Ludiwigia Repens Super Red is one of the fastest red growers. I got them as green stems at about a foot tall. They converted to immersed, went red, and hit the top of the 20" high tank in just a few weeks. I've already replanted many cuttings. Mine have gotten redder since last I first posted but nothing like that deep red pic. The orange in these is beautiful too.
Beautiful your colors are natural and similar to what I have observed.
ABC plants in Montreal sells Ludwigia sp. super red (Palustris 'super red') as a tissue culture if your looking for some. It is a deep red even under daylight bulbs.
Thank-you I have been meaning to contact ABC as the store I usually go to is only open a few hours a week now due to Covid-19.