Cinematic color grading is one way you can help your images be consistent, or add some drama to an image that needs a little more. Color grading can also help sell the emotion of the image.

Here are some good Color Grading tutorials for you to check out.

https://www.youtube.com/watch?v=CvopX_R-6nI

https://www.youtube.com/watch?v=fSyXc2jdLPo

https://www.youtube.com/watch?v=HViAvMjGInM