If the brightness and contrast have been improved but the colour still looks 'underwhelming', try increasing the colour intensity using one of the following possible fixes:
I had to smile when I tried this first fix, Auto Color Correct, as Photoshop Elements transformed my late afternoon sunset to an early morning look. The color in the fixed version is good, just not the result I was after. I then tried the Vibrance and Saturation sliders under the Quick > Adjustments > Color panel and struck lucky, forcing the color enhancement you see below. Although you could enhance the color more, if you take it too far, it produces a richness than can not be printed accurately. Worth considering.
Here are a few more color fixes worth noting:
- Quick > Enhance > Auto Color Correction
- Quick > Adjustments Panel > Colour > Saturation/Vibrance
- Quick/Expert...