[Peter Finke]

The first is a naygi Kuantan-type for sure, since the colour of the tail fin band seems to be whitish.
The second are young linkei. Young because the filaments of the fins are hardly developed. “moon spot” is a typical trade name, still better would be “star sky”.
The third is impossible to say. You need 1) good, sharp, detailed photos, 2) photos of males in courtship colouring, and 3) definitely not in frightened-look colouring (as here the last one). It is very unlikely that it is gunawani. P. ginawani was never imported for sure commercially, but privately only. It is known from one location on Sumatra only, and it is heighly unlikely that all fish since sold als “gunawani” could originate from that spot. The trade knows what people are interested in: new species and again new species. Since many Pars are difficult to be determined, the use their chance to sell “new” fish.