Experimenting with SMB music themes in synth/retro style

NeonXmusic

Goomba
Hello fellow Mario fans!

I have been trying to create and mix unique versions of video game themes and recently started experimenting with themes from Super Mario Bros (SMB1). Just wanted to share two songs and hopefully get some feedback on what to improve or whatever feedback comes into mind. Maybe there are more fans in here that have similar interests?

These are the links:

Castle theme
Star theme | Overworld theme mix

I'm no pro or anything, just doing this because it's so damn fun and because I love the nostalgia from the Mario world :)
 
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