Indoors spaces look kinda of dark or with no ‘‘realistic lightning’’ - when you are on a indoor place, the light does not feel good. it feels like everything is under a massive shadow. the game could have HBAO+ or XeGTAO (Or even raytracing options to correct this).
About the phisics: when i have to do a sharp jump on a parkour site, i cant time the running and jumping at a good timing, so my idea is: when u run of a cliff, you have a microsecond to perform a jump (yes, on the air). this will fix and help a lot of ‘‘parkour-ing’’ .