Thank you for the compliment on the artstyle of the pack.
I've just been in to check the downloadable files, and everything seems to be fine with them. If you have downloaded the promotional image on this pack and are referring to the color around the assets on this, that is exactly there to prevent theft. If you pay for the package and download it, and there should still be issues with the files, please let me know.
I'm sorry to hear that you are not willing to pay for this asset pack, but it's in fact how I make my living. I have other free asset packs on my site, so I hope that you will find one that you like there.
Have a nice day.