Silk and Wool Scarf

This is a silk and wool scarf that has been dyed and over dyed three times with acid dyes. During the process,  I noticed this type of dye also splits when applying a new color. Next time I will take notes to have them on hand as a reference for the next dyeing session. The main problem I have is with the finishing technique. Since I bought the yardage and cut it myself according to the size I wanted, I took the piece to my serger and tried different stitches BUT I don't like the end result. Any suggestions would be appreciated.