Thank you for the encouragement, I will continue trying times as needed.
I thought that I had already commented on my previous answer, but here it is again:
https://1fichier.com/?md6hs9kyc4

third time lucky?

https://1fichier.com/?qzhunt6gsz

Thanks for giving me another opportunity, I have asked for advices and looked tutorials about this and I can say that they were me much better.

https://1fichier.com/?87kydgi318

In the image 5 I can use topaz Clean (degrunge), topaz Denoise and topaz vivaciy(sharpen) to improve the sharpness of the image

Name: Angolx
Availability: All the days except that I appear some personal matter
What Manga You're Interested In: Sprite
Software: Adobe Photoshop CS6
Experience: I currently work on the spanish version of Sprite and other manga in Btooom no fansub
Other Groups: Personal scan (2 persons ...