Photoshop Tips & Tricks: How to Selective-Color (Color Accent)

* Create a Hue/Saturation Layer of the Inverse of the area that is to be color accented.

* De-Saturate the whole Layer

* Paint in (in black) the area where it is accented, leaving the accented area.

Photoshop Tips & Tricks: How to Create a Vignette

1) Create a Levels Layer out of the area that is to be burnt in:

* Use the Lasso or Marquee Tool to select the area.  Make sure the Feather is set to be large enough.

* Select Inverse.

* Layer / New Adjustment Layer / Levels, Mode: Normal, Opacity: 100%.

2) Burn in the area:

* In the Layer Content Options, slide the Highlight Output Level Slider toward 0.

* Adjust till the desired effect is achieved.

Photoshop Tips & Tricks: How to Sepia-Tone a Photo

1) Create a Hue/Saturation Layer, Mode: Normal, Opacity: 100%.

2) On Layer Content Options, select Colorize, Saturation: 10, Hue: 30.

Play around with Saturation and Hue till the desired effect is found.