Yes, I gave you a negative score...
And I feel that you deserved it.
You blended the checkerboard pattern that denotes no-border into the bottom of your image, thereby making my job of blending into your lower border VERY difficult. You blended the shape of the image to the left but not the colour so there is a distinct line between your tile and the one on the left.
Because you didn't blend properly with the tile on your left, when I got the tile above the lower corner was very dis-jointed and once again very hard for me to blend.

So that's why I'm NOT HAPPY with you...

Some of your other tiles are really good, what happened here?