Hard to say, because you applied a further sharp mask in photoshop and these are not the raw scans.
But after zooming in Picara's face, my guess is:
image 1: maximum sharp
http://i272.photobucket.com/albums/jj200/citaltras/basura/facelarge1.jpg
image 2: low sharp
http://i272.photobucket.com/albums/jj200/citaltras/basura/facelarge2.jpg
image 3: medium sharp
http://i272.photobucket.com/albums/jj200/citaltras/basura/facelarge3.jpg
It is not really easy to appreciate on these thumbnails, but you can check by zooming at some small black line or dot in the original images.
As for your color correction, is perhaps too much for me. The yellow of the paper is lost, but with it, some of the yellow components
of the art are lost too, plus the faces tones are shifted to pink.
I prefer to keep the paper as background, correcting just a little if too yellow. For two reasons:
1- I want to see a scan of the original comic book and not only of the art. For me the paper is a part of the book.
Editing colors too much you end with a new edition of the book, very different to the original.
An example are the scans of old Pulp magazines that are available. If you eliminate the paper, you lost the essence of the pulp
since only the text remain.
2- The second reason: if you read these comics in a computer or in the IPAD, then the white background is annoying
for the eyes. A yellow background, like that of the original paper is more comfortable and less harmful for the eyes.
