From my own experience, I can say that the main secret is respect for yourself and your body, as well as the right approach to lighting and angles. It is best to use soft, diffused light - it smooths out the lines and emphasizes the relief without sharp shadows, creating a natural and aesthetic image. It is better to choose angles so as to emphasize the strong points of the figure - for example, a slight turn of the body, playing with shadows and light helps to make the photo expressive, but not vulgar. It is very important to maintain balance - the shots should be sensual, but not provocative. This article helped me, check it out. Where it tells in detail about how to take male nudes. From preparation and posing to technical details of the shoot. There you can find a lot of useful tips and inspiration that will help you create stylish and aesthetic photos without going overboard.