Simple Free Cam - This is a mod that gives you the ability to untie the camera from the player and look at things from any angle. Controls: K+M - Activate free camera mode / Return camera to player I - Fly forward K - Fly back 0+P - Camera speed control (You can also use the mouse wheel)
If you want to disable the information window on the right, then open the ini file and replace the line "ShowInfos" 1 with 0.
Update 11/25/2018
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Fixed issues with the Enable cutscene mod. Now, instead of entering a command to activate, you just need to press two keys together. Now everything can be customized in the .ini file. Changed the speed increase button (because I always pressed the speed increase button, not "forward"). Now the increase in speed does not depend on FPS. Now, when you lower the speed too much, it doesn't go negative.