Merge down all the layers now: Layer ? Merge Visible (shift+ctrl+e) and create a new layer, lower than the layer containing the picture itself. Then enlarge very accurately the zone around it, selecting the Crop Tool and paint the empty layer in white.

Lady Nature Photo Effect

Create out of this picture's layer a mask: Layer ? Add Layer Mask ? Reveal All and choose the Brush Tool with unequal edges of black color to paint partially the picture's edges just to create an effect of tear paper.

Lady Nature Photo Effect

Apply the next command now: Layer ? Remove Layer Mask ? Apply and make a copy of the layer (ctrl+j). Then transform the copy
  
in black selecting the Channel Mixer.

Lady Nature Photo Effect

Place the layer under the layer containing the picture and blur it out (Gaussian Blur).

Lady Nature Photo Effect

Choose now Pattern Stamp Tool with the next shown adjustments:

Lady Nature Photo Effect

Paint in this color the layer's background:

Lady Nature Photo Effect

Change the color also (ctrl+u):

Lady Nature Photo Effect