Stumbled upon this guy's YouTube channel earlier - he does really amazing guitar covers of famous classical pieces!
Shostakovich - Waltz No. 2:
https://youtu.be/LVlUMmXVGiE
Tchaikovsky medley:
https://youtu.be/qWmyN5b3gII
Saint-Saens - The Swan:
https://youtu.be/6oGKMwXVN_E
Vivaldi - Summer:
https://youtu.be/MBtj07G_x-A
His covers are also available on Spotify. Really great stuff!