Obviously, from time to time I must tell a serious word to some of our new members.
There are structural markers and distinctions of colours that permit to distinguish between Paro-species und -variants. Additionally, there are differences in behaviour, say courtship head down or head up, or else.The most easily to detect marker is whether the fish has a rounded tail fin or a tail formed in another a way. But this is by far not sufficient. There are many species/variants with rounded fins, as bintan or alfredi or anjunganensis for instance. Another rather clearly to distinguish marker ist the length of the ventral filaments. But again, this is not sufficient. In the case of the two slim-bodied species (parvulus and ornaticauda) we have that structural marker, too. But in all the others you need colours, too.
So, in many cases we need colour markers, in addition to structural markers. If the animals are too young, one is unable to say the species. With female fish it is the same, apart from a few clear cases. Even in species mit non-rounded tails in males we have often rounded tails in females (e.g. deissneri).In all other cases, you need g o o d photographs to say anything reliable. Look at the photos in the Finke/Hallmann-book on Paroshromenus and you will see what that does mean. Here, in the forums of the PP, we sometimes had good photos, either; among our members are some (very few!) good photographers. But most photos we see here are simply too bad to say anything of value. It is difficult to shoot good Paro-photos, but without them we are stirring in the dark.
The only thing one can say with your photos here is that your fish is certainly not deissneri and cetainly not anjunganensis. If you want to hear more, you must deliver very good, big, sharp, clear photos. Better, you deliver the source of your fish additionally. Most Paros in the tanks of our members are from the trade. There are big differences in the continents and countries, the companies and shops concerning trading Paros. The best advice is to buy your fish from a good breeder personally. If you will come to our second Hamburg meeting this September, then you can obtain offspring of many rightly determined species. I know that this is often impossible. But then you will come across all sorts of nonsense names.
There is no alternative: At least, you must deliver photos of best quality. Otherwise you cannot hope for a precise answer but suspicions only that name at least four or six species; if the variants should be included still many more.