I'm with Arseen, the KONG letters work. What doesn't work (for me) are the muddy shades of brown/green (which almost any inkjet printer will have a nearly impossible chance of replicating) and the sprites at the top. I LOVE sprite art, but the DKC stuff hardly qualifies since it's just a super low res snapshot of a 3D model. A style that repulses the shit outta me to this day and is the only thing that I hold against Nintendo, as its responsible for ruining at least 2 of their biggest franchises at the time (DKC and Killer Instinct). It looked dated the moment it was released.
Sorry for the rant. I think the sprites are totally acceptable, I just don't care for them. The colors, on the other hand, I feel are a blight on your otherwise competent spine designs.