We will start from knowing that a raw render is nowhere near a good balanced image in terms of color or light. The images straight out of modo contain a good amount of information to work with, but they are often washed out or have exaggerated saturation; they require tweaking.
This is normal, no matter how advanced or sophisticated your 3D software is, a raw image should never be used as final art. That's why the post-production phase is so important.
Among other correction, I want to set the four that are the most important to enhance your image for me. As usual, I will specify the route to get to each correction, along with its keyboard shortcut.
You can find the levels by navigating to Image | Adjustments | Levels; the ...