Reduce the text - without losing any meaning to 'Filter By'.
Also, there are at least 6 variations of the colour red in links, headers, buttons, etc (#cd0001, #e70202, #e31818, #d4021d, #eb0000, #d3031b). Use the red colour consistently or use clearly contrasting saturation/lightness levels of the same colour instead of slightly different and conflicting 'hues'.
Reduces clutter and adds extra white space in that area. 'Filter' or 'Refine' are words and functions which are instantly recognisable and can stand on their own.