Mark it out (Rectangular Marquee Tool) and copy the ornaments: Edit – Copy (ctrl+c). Get back to the file with the processed picture and insert it on a new layer: Edit – Paste (ctrl+v). Choosing the Polygonal Lasso Tool, you have to mark out the central flower.

 yellow portrait photo effect in adobe Photoshop cs2

Erase it. The rest of the ornaments must be decolorized: Image – Adjustments – Desaturate (shift+ctrl+u).

 yellow portrait photo effect in adobe Photoshop cs2

Increase its brightness (Levels).

 yellow portrait photo effect in adobe Photoshop cs2

And then change the layer's type on Hard Light, minimizing its Opacity also till 25%.

 yellow portrait photo effect in adobe Photoshop cs2
 


Get back to the girl's layer, giving to her eyes a luminescent effect.
It's possible to do that with the Dodge Tool.

 yellow portrait photo effect in adobe Photoshop cs2

Correct now the colors of the girl's layer, using Image – Adjustments – Selective Color and Image – Adjustments – Curves (ctrl+m).

 yellow portrait photo effect in adobe Photoshop cs2

On a new layer, above the girl's one, must be painted her eyes (Brush Tool).

 yellow portrait photo effect in adobe Photoshop cs2

Change the layer's type on Color Burn and minimize the Opacity till 50%.

 yellow portrait photo effect in adobe Photoshop cs2