well kinda hard to tell since most of the pics they are not flaring but i think you have 1 maybe 2 halfmoons in those pics. look at my avatar see how when mine is flaring its like half a circle? like a fullmoon but cut in half.
if the spread of the tail fin isn't quite 180 degrees when the betta is flaring then it is considered a delta tail instead of a halfmoon, in case you wanted to know.