How to change the color of an object with a reflector?

Hey everyone! I am new to this forum and wanted to post a question/struggle I am having with a current edit. I have a picture of my dog with a antler in her mouth that I am making look like a drawing that will later on be printed on a t-shirt. Because she has on a pink collar I want to change it to hunter safety orange to make look more like a sporting dog. I will later on change the background and this will be printed on a t-shirt. I figured out how to change the color of the collar perfectly however, the collar has a zebra print reflector around it. If I select the collar as a whole and change the hue to my perfered color it will not change the zebra print reflector. I do not wish to keep the print or the pink color so I thought it would blend it all together. I have also selected only the zebra reflector part and tried to adjust the hue separately and all it did was create a neon rainbow effect. I tried to put a teture over it but it still would not change the color in that particular spot. I can cut this out and still leave the pink edges. I took this photo with my iPhone and did not use a flash so the photo does not have any light reflecting off of it. I am just looking for some advise as to what the best option would be for me if anyone can help. Should I cut that part of the collar out and replace with a texture?  I just want the whole collar saftey orange and to get rid of the zebra print reflector and change it to a drawing.