Thank you very much these are all photo manipulations, I.e. photo's were used as the base which I then coloured, cut, blended, molded, reshaped, blurred, etc in a variety of ways in Paint.NET.
The top one (space) has only two actual photo's in it (everything else was created in PdN), the second one consists of 4 major images (dragon statue, fire fractal, Castle and moon/clouds background), the third one has a few more images in it.
Nothing different from what most artists do in PhotoShop but done 100% in Paint.NET