Firstly I would have added a slightly bright cc with some higher contrast levels.
Secondly I would add a slight wiggle effects which can be in pan/crop
but I recommend downloading a scale and graph editor plugin
to sonyvegas from there you can go learn how to use scale and the graph
editor.
This is a great video explaining this it is on After Effects but once you download
a scale and graph editor plugin you should be able to follow the tutorial spot on.
The video he made also has a premade light cc pack that looks pretty nice.
P.s. When making the wiggle make it very slight to give it a really smooth feel to it same goes for pan/crop.
Another thing I suggest is making little pumps or effects when one player hits another or a hard hit on uke bash
I have learned people like that and it feels satisfying even to the viewer.
Videos to help if you don't understand what I am saying