I'm sure it's not your fault @LFCYNWA because it looks like whoever took the photos either took them with some weird lighting or added some effects afterwards. But the colouring in most of this pack looks a bit off. If you come across some similar sources you'd like to cut but don't know how to tweak them to get better lighting, I would suggest asking for help in the tutorial thread so that you can fix them before uploading. I'll be fixing them all myself before adding them to the megapack, so you don't need to worry for this lot 😉

In this case, there's a fair bit which needed to be done. I tweaked the color balance (CTRL+B) by sliding the second bar towards green and the third bar towards yellow. I also tweaked the hue/saturation level (CTRL+U) by decreasing the saturation for cyan, blue and magenta (especially blue). Since the cuts have a blue(ish) collar, I lasso-ed the collar then inverted the selection so that these hue/saturation tweaks didn't also affect the collar colour. Finally, I also increased the gamma correction bar in the exposure section (Image > Adjustment > Exposure).

It's not 100% natural, granted, but it's a fair bit less jarring imo 😉