I think having the brightness filter is better than not having it there. It makes the scene feel much more appropriate with the time of day.Actually the image does have a filter... I had also tried many things, like adding grass or using lighter colors but I was not really convinced by the final result.
look at an example
View attachment 2351475
I really feel that this type of thing does not go with the image so I discarded it
Moving on to your request I could make the filter stronger or increase the brightness as demonstrated by vitalsigns
This would be the result with a slightly stronger filter:
View attachment 2351502
How about?