Red Velvet‘s Seulgi just took on a whole new look for fall. | @hi_sseulgi/Instagram | @hi_sseulgi/Instagram | @hi_sseulgi/Instagram In brand new Instagram photos, she revealed her shaggy haircut. | @hi_sseulgi/Instagram | @hi_sseulgi/Instagram The haircut features many layers that frame her face beautifully with the longest point reaching her shoulders. | @hi_sseulgi/Instagram | @hi_sseulgi/Instagram Netizens believe…