An image that popped into my head this morning. Since my subconscious had put Sweetie Belle in a rock band  
and Rarity has been shown to known how shred a guitar rift YouTube . I figured Punk Rarity  
would be down with jamming with her little sister. So today I sketched out this piece. I am using the music themed pieces to further push my figure drawing skills.
 
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Edit. These are some of the tunes that I was listening to while I was drawing this. Hardline Crazy Train Joe Satriani