Crossed arrows are a symbol of friendship, but usually they are arrows with a point on one end and the feather on the other end, like actual arrows. Also, here, since one of the arrows is longer, it suggests a Christian cross. It has a positive appearance because the arrow tips give a dynamic feeling of movement forward in all four directions. If the arms were of equal lengths, I would be reminded of the traditional image of the four directions featured in sacred American Indian images. It has an elegant look because the lines are thin and simple; it could just be a stylish decorative Christian cross, because it doesn't look like one of those formal religious emblems, but is more artistic. (There is a "pointed cross" in Christianity, also called a Passion cross, where the tips of the arms are pointed, but the points do not resemble arrow tips.) There's also something a little ritualistic about it, like tribal markings. It makes me feel it was done as a pledge or a vow, which brings me back to the friendship theme. Two lines are united, and together they move forward in all directions. Again, that could simply be decorative. I doubt there is some special esoteric meaning, since it is difficult to find this example online.