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The picture before and after editing (click to enlarge the pictures):
Open up your image in Photoshop.
Right click on layer, choose Layer From Background, click Ok.
Choose Image > Canvas Size.
Select Relative, and enter the amount you want to add or subtract from the image’s current canvas size. Enter a positive number to add to the canvas.
For Anchor, click a square to indicate where to position the existing image on the new canvas.
Duplicate this layer.
Select layer in the Layers palette.
Drag the layer or group to the New Layer button .
Go to Filter > Blur > Gaussian Blur(30).
Go to Filter > Blur > Radial Blur(100/zoom/best).
Increase the area of this layer.
Go to Edit > Free Transform.
Create a new layer.
Fill it with linear gradient (Dark color/ Transparent).
Choose Multiply Blending Mode for this layer, Opacity 30%.
Return to Original layer.
Select flower, using Quick Mask.
Using any selection tool, select the part of the image you want to change.
Click the Quick Mask mode button in the toolbox.
Color overlay (similar to a rubylith) covers and protects the area outside the selection. Selected areas are left unprotected by this mask. By default, Quick Mask mode colors the protected area using a red, 50% opaque overlay.
To edit the mask, select a painting tool from the toolbox. The swatches in the toolbox automatically become black and white.
Paint with white to select more of an image (the color overlay is removed from areas painted with white). To deselect areas, paint over them with black (the color overlay covers areas painted with black). Painting with gray or another color creates a semitransparent area, useful for feathering or anti-aliased effects. (Semitransparent areas may not appear to be selected when you exit Quick Mask Mode, but they are.)
Click the Standard Mode button in the toolbox to turn off the quick mask and return to your original image. A selection border now surrounds the unprotected area of the quick mask.
If a feathered mask is converted to a selection, the boundary line runs halfway between the black pixels and the white pixels of the mask gradient. The selection boundary indicates the transition between pixels that are less than 50% selected and those that are more than 50% selected.
Apply the desired changes to the image. Changes affect only the selected area.
Copy and paste flower into a new layer.
Duplicate this layer. And adjust Opacity for original layer about 30-40%.
Settings for duplicate layer.
Go to Filter > Stylize > Glowing Edges (2/20/15).
Choose Screen Blending Mode for this layer.
Add Vector Mask.
Fill it with Linear gradient (black/transparent)