Outside of being inexperienced with wall paper, the sections stretched while trying to apply them to the wall throwing off the measurements initially determined. The instructions indicated to wait 3 minutes to allow the paste to absorb the paper. That was too long, since the paste dried in that time.  By applying the pieces earlier, the wetness caused some corners to rip. One of the section’s was also darker in color from the others, which is obvious. If I ever choose to do a mural again, I will hire someone to put it up for me.  Anyone who is familiar with hanging wallpaper, these murals do add a great accent to a wall.