I got my violin from a local music store a year ago, and now I'm noticing scratches on my violin. There are some scratches that are pretty deep. I don't know what caused that to happen. (The wood my violin is made of is very thin) There are no holes (except for the f-holes of course) And, the area between my bridge and under my fingerboard (where the rosin falls) has a light white on it. When you scratch it with your nail, some of it falls off but it's not rosin. If it helps to know when my violin was made, it was made in 2009 and is a half size. I have a silk case that I put it in. I'm wondering if I have to polish it at the store or maybe just let it be??