We are coming to Skiathos in early June staying in Panorama Hotel, Koukounaries. Are there opportunities for privacy on beaches within walking distance of the hotel where im able to do take photos of my wife in bikinis and some nudes? Nothing dodgy guys, just a guy taking photos of his wife posing in sexy bikinis?
Going at that time of the season, if you want to hire a car for a day, there are many such beaches on the north of the island that would fit your bill. You will be spoilt for choice as there won't be too many people around that side of the island. You will probably have the beach to yourselves.
I don't think you will have may complaints on any of the beaches, although maybe some of the more popular family friendly ones. Small Banana maybe a nudist beach, but there are still people who don't go all the way. As Tony & Jill says, some of the northern beaches are very secluded and don't get too many visitors.
About a 1 1/2 - 2 mile walk through the pine forest from the Panorama. Mandraki a great beach. A small taverna and just a few sunbeds. There are actually two Mandraki beaches though, either side of a headland (see my Google Map), it is situated on the north western part of the island, north of Koukounaries. One is called Mandraki Xerxes and the other is Mandraki Elias. Parts of Mandraki Xerxes are used by nudists too.