You may not like this answer but it is the correct one.
"You need to know, you can not view a Raw file. It has to be converted into something else. A tiff or probably more likely a jpg. The conversion software doesn't know how to do this so it relies on the tag file, metadata, embedded in the Raw file. In other words it reads your camera settings and that is the starting point. ... "
Even using two different converters, say DPP4 vs LR, you will get two different renditions. In other words they won't look the same. I agree with Robert entirely, lack of experience in either the camera or the post editor is most likely the reason. You only other choice is to send it to Canon, again like Robert suggests, for a C&C.
Again quoting Robert, no one gets 100%. Not even me! 
@ebiggs1 wrote:You may not like this answer but it is the correct one.
"You need to know, you can not view a Raw file. It has to be converted into something else. A tiff or probably more likely a jpg. The conversion software doesn't know how to do this so it relies on the tag file, metadata, embedded in the Raw file. In other words it reads your camera settings and that is the starting point. ... "
I thought that every conversion software uses and relies on its own camera profiles rather than meta tags, the only excpetion is white balance maybe. Although in spite of that everybody is saying you can set any white balance in post processing without missing anything, I have other experiences anyway. If I set wrong white balance for exemple "sunny-daylight" color temperature and shoot the photo in shadowed place, I can do nothing in post processing because the colors will be lost for myself. I can try to set white balance temperature sliders but can't obtain right colors in this case. The example is below.
The Raw file as the Capture One see it, converted to jpg:
And the tweaked version by me, where the white balance was set from the lump of the bright pice of model shorts and corrected a bit. The final colors I really don't like at all. I had to decrease the color saturation -10 because there was huge saturation, and I added a little bit the blue color in shadows as well.
@ebiggs1 wrote:
Even using two different converters, say DPP4 vs LR, you will get two different renditions. In other words they won't look the same.
I know that, it is because diffrent converters use diffrent demosaic technik.
@ebiggs1 wrote:I agree with Robert entirely, lack of experience in either the camera or the post editor is most likely the reason.
That's why I need some help and want to find a solution for me 😉
