Shouldn't a patch panel be better than this?

[zac]

'70 Suburban, patch that goes between the back of the third door to the front of the rear wheel well. I know they are never perfect, and I know the deal on who makes these and where. The seam pictured is right at the top of the wheel opening, so any blending efforts will be noticeable. The flat area on the patch is a full 3/16" short of the original. This isn't going to be a show truck, but I put a lot of effort into this so far and was expecting better. Any point in returning this and getting another, or is this just going to be par for the course?