Classical Guitar Refinish

so i had an old and cheap guitar, which i didnt really like. and i always wanted to refinish it. so one day i got this idea. why not go to the sea, fish some pina nobilis shells, cut the mother of pearl they have inside, and stick it to the fretboard?... and so i did. but with it, it came to me that i had to sand and refinish the whole guitar. so here it is.