Looking for ways to make my song covers more appealing

[Jade Heart]

Heya, I like to do covers of songs on Youtube. I think the music is turning out good, but not the background of the video. I'd like to know what you guys think I should do to make my videos more interesting in general. I'm thinking that for the background I should add gameplay of whatever the song I covered relates to like Castlevania gameplay for a casltevania song. I'm not the best at doing song covers but I try my best. To make the songs I play them on a midi keyboard and then change the instruments around to make the song itself a bit more appealing.
I can't actually film myself playing the song atm as I currently don't have the money for a half decent webcam, but I'm saving up.