huh? what do you mean?
He means:
1. Post the pictures, not links.
2. You copied and pasted these, which is only bad if you did it wrong.
You did it wrong.
If you were to put the wall prints next to each other, they don't match up. Also, what Badspot said about the Bioshock textures applies here:
These look bad because they are not seamless textures. However, even if you made them seamless they would still look bad because Blockland is designed for transparent textures that let the brick color show through. When you use a completely opaque texture, the surface "glows" and there are no lighting effects which is what makes Blockland look good. The whole thing ends up looking like second life.