ooo i very much like all the bendy, weavy instruments the perspective is so neat!
I feel the texture on the guitar case could use a bit of detail, looks a bit flat/simple just being black like that. I really like what you are doing with the keyboard, and guitar it's almost as if they are about to face each other For some reason though the keys of the keyboard are getting smaller (thinner) but the width is the same, giving it a bit too much distortion from the perspective you are going for.
Love it though! possibly a bit more shadows but really it's looking pretty cool!