I have various album covers which are low resolution, but the colours come out really pretty.
I have higher resolution images of the same covers, but the colours are very different, much duller and less vibrant.
The first image is the original which I would like to imitate. The second is the larger resolution image I have acquired (scaled down for easier viewing). The last image on the bottom is my attempt at imitating the top image using the second image. Using GIMP, my settings were:
Colors → Saturation: 1.500 Colors → Brightness-Contrast → Brightness 35 Colors → Brightness-Contrast → Contrast 8
But as you can see, the colours and tones are just not quite the same. The skintone isn't as rosy-peachy and the colours just don't feel as warm as the original.