Hi, Keithoms,
beautiful colours on your fish - makes me think of exotic flowers.
That last shot makes it seem he's asking his photographer for modelling direction, lol.
Hello and welcome, onebto!
The community tank thing actually depends on the personality of the individual betta and those of the other fish involved, as well as whether the tank is set up with lots of plants, rocks, slate and/or other 'privacy screening' and as to whether the betta was introduced AFTER the other fish settled in.
In my very limited personal experience and wider reading, it appears that bettas from a delta/half-moon-type line typically tend to have less aggressive tendencies toward other fish, while crowntails are notoriously crabby.
I have one betta, (sold as a half-moon and may well have actually been, although I've never seen him flare,) in a 15 gallon Walstad with lots of plants, etc., with 4 White Cloud Minnows, (and several long-finned WCM waiting in a Q tank) one small guppy/Endler cross, several pygmy cories, (more planned when I can get hold of some and the following event FINALLY occurs) and a young female Bristlenose who was actually supposed to be shifted into her destined tank some time back, (and may I say Aaaargh!?).
In any event, the betta and other fish ignore each other and endlessly roam the jungle to the point where there have been moments where nobody was visible...
Both of my male crowntails are living alone, although the older one has certainly mellowed, and I may install a small armoured companion yet, after his tank conversion to a (well planted by definition) Walstad is completed and grown in.
Naturally, if I do so, there will be a back-up spot available in at least one of the other tanks in the event of any unfortunate personality clash...