The starting point was a photo from last year of a pink rose in my mom's flower bed, which was a very nice photo in itself.
Original
Then, I edited it in photoshop, first by desaturating it and colorizing it to a similar color, then running the Diffuse Glow and Film Grain filters, and Auto Levels, Contrast and Color on layers with lowered opacity.
Photoshopped
Then, I opened it in NeatImage and ran the filter to smooth it out a bit, and make it look more 'dream-like', and I'm pretty happy with the end result:
Final product |