color change in the image

[sallyanne]

Many different ways to make frames. After making your selection you could also use the selection 'border' . You can feather it, distort it etc depending on your preference.
With the 'border' the selection, amount you choose will be in and outside your initial selection, so you need to take that into account.
Best to make a brush of it when you are finished so you can use it again - If you do not want to go through it all again making one.
You can also use the kaleidoscope filter to make a frame