What is it that bothers you exactly? It looks like you had the bloom filter ON, judging by the look of the reflected ceiling lighting. Assuming it was the bloom and that it is what you don't like, you could either play with its values under Render settings>Filtering or disable it all together.
If the bloom filter was not ON, then it would be that the luminance of those emissive ceiling lights is set to a very high value. In that case, I would try lowering the luminance of those emissives. If that makes your scene look too dim to your liking, you can then lower the exposure value under Render settings>Tone mapping.
One and a half year later I've totally forgotten about these renders I had to remake, so I made it today.
Thanks to Night Hacker and ArturiousDesign who have helped me a lot. It wouldn't work without you guys