Hello, sagerebel. Thank you for posting your question to the Apple Support Communities. We’re happy to assist you with transferring photos from your iPhone to your Mac.
From what we gather, when you import photos to your Mac, you are noticing the colors and orientation have been changed from the originals. We can certainly take a look to find out what could be causing this.
To start, we’d like to be sure that you have the suggested steps to follow when importing photos to your Mac. Please read over the following Apple Support articles before attempting to import again:
Overview of importing photos and videos into Photos on Mac - Apple Support
Import photos from a camera or phone using Photos on Mac - Apple Support
If you continue to notice the same issue with your imported photos, can you tell us how things appear when you use iCloud to sync your photo library with your devices? If you do not already use iCloud Photos, the following article explains how you can get things set up:
Set up and use iCloud Photos - Apple Support
We look forward to your reply!
Cheers!