I tried the DKC2 one (Wet Monkeys) and the Wario Land 2 one (The Train to Greedville). Both had different feedback. The DKC2 one was too repetitive and the Wario Land 2 one had too many samples and sounded off in some parts.
Don't take it too hard. OCRemix has some prestigious and nitpicky judges who value sound quality and "cool" music over work with artistic value, which is exactly the reason I haven't submitted anything.