Oh yah, neighbors hanging red humming bird syrup will produce scattered cells of redish/pink honey. At least it sure did in my hive this year. It was very easy to spot, and I could tell cause I knew exactly when the humming bird feeder went up. But it was just scattered on a few frames and didn't affect my harvest/taste in any way. It all got mixed in.
And yes, congratulations on your first harvest. It is so sweet. Just think how great next year is going to be when you get whole supers full.
As a hobbyist I just love giving my honey away. Sure makes Christmas a lot easier when you don't have to worry about what to get those people you know you need to give just a little "something????" but don't want to spend days shopping for smaller gifts. And like this weekend, a friend just brought me an unexpected gift back from Singapore, so now I will take her some honey to say "thank you." Everybody loves to get honey, and homegrown is the best!