Well, there’s lots you could do, but if you’re just learning color technique you could mess things up fairly easily. Unless something really stands out to your eye as unacceptable, you should be okay.
Just for the record, did the broadcast colors filter improve the look of your project throughout? If not, then take it off. These universal one step filters are not always a good idea, especially if your material was pretty well shot to begin with.
DRW