Macbook Pro 2017 Heating Issue while running Windows 10 on Bootcamp
The needn't worry over the core temperatures you've shown in your screenshots (47-50 degC). And your system will always run hotter when you are using Windows in Bootcamp... I don't know all of the reasons for this, but it's just "the way it's always been" on my Macs. 

As for your questions, "I was wondering if this kind of stuff is normal. I'm worried if this is overheating and it might compromise the life of the Macbook for which i have spend a lot of money on.": 

It's a well-known fact that heat adversely affects the life of electronics. But again, for the temperatures you've recorded, I wouldn't worry. You may find that when Windows 10 performs some compute-intensive tasks that the temperature goes a bit higher. Apple has some guidelines on temperature management. And here's a Q&amp;A that provides additional information.