I like the overall concept. But I have a few questions.
What's up with the rainbow stripes? I've never owned a VHS tape with those stripes! On the box, sure.
Just make the card back the tape cassette itself - with the "opening flap" on BOTH sides, because while it's not technically accurate, it does make the back design two-way.
Why do the cards have a "chalk on a chalkboard" look to them? It has nothing to do with VHS tapes! You could alternately have made them look more like the sticker label on a VHS tape, with the pips and indices drawn in by hand in pen or marker - like what most people did with their VHS tapes back in the day.