Hi, and sorry for the delay. Unfortunately I do not understand the issue from your description, and also cannot see anything I would call "color leaks" when looking at the attached image. Can you maybe circle the problematic areas of the image?
I also didn't fully understand what exactly you are doing. For example this part is confusing to me, and I don't get it what the task here is: "whenever I import my scene into the picture the scene adopts the color of the image"
Sorry, and thanks in advance for your explanations!