最终效果图如下:

原图片素材:

具体步骤如下:
Apply Image -Adjustments -Curves (ctrl+m) to correct the colors.
点击图像-调整-曲线(ctrl+m)对颜色进行修正。

That is what we've got:
下面是颜色修正后的结果。

To change the eye's color we have to picture on a new layer several circles, using Ellipse Tool. (Use the fast button on the Layers window to create a new layer).
下面我们给眼睛变个颜色,。新建一个层,使用椭圆工具画几个圈圈,如下:

Apply to this layer Filter -Blur -Gaussian Blur.
对眼睛进行模糊操作(滤镜-模糊-高斯模糊)参数如下:
