How to get this effect?

[Amphersand]

Any ideas on how to get this sort of solarised effect?

Cheers
A

 

[Blue Velvet]

In Photoshop, try running Gaussian Blur filter over it with a generous radius, then Edit>Fade>Overlay... after that, you could also then mess with Curves and/or Saturation to get the final result you want.

 

[speakerwizard]

that actually looks like an hdri photo to me, which can bring out some loverly strong colours, but sure you could fake that kind of saturation

 

[bartelby]

try duplicating the layer then, for the new layer

set blending options to soft light.
Image -> Adjust -> Hue / Desaturate. Set Desaturate to -70
Image -> Adjust -> Brightness & Contrast set both to +10
Filter -> Blur -> Gaussian Blur - Set to 7.0 .

Flatten the image and play with levels settings

 

[ATD]

that actually looks like an hdri photo to me

Good call, that's what it looks like it to me.