I got some feedback too!
- It looks like the people are floating a few centimeters over the ground (and I am quite sure that they really do).
- Some real shadows for the people and balls would be awesome, but I get that it would be a bit tricky to mix them with the static shadow map and make it all look good together.
- It looks like you are trying to do some kind of SSAO, but it causes halos around the players which doesn't look good. So maybe don't use it or try a much shorter depth bias.
- The UI graphics are not pretty. Making them flat and tweaking the colors would improve the general look a lot already.
- Some dust particles in front of the windows with the sun would probably look awesome.

But you already did a great job on it laugh