I have seen worse wiring. Your fusebox, wiring wise, doesn't look bad. However, the mud and dirt indicates there may be corrosion in most of your connections and even behind the box. That needs to be addressed first.
12 JK,2.5" Teraflex lift,Bilstein 5100's,BFG KO2's P305/65R17
17 WK2 Trailhawk