Help Dark Charizard 21/82 holo fake?!

[Oli Adams]

Hey all,

I'm going through my cards at the moment and I've found this 1st Edition Dark Charizard 21/82 but it's holo.

Is this a fake? Have the same with Vileplume and Vaporeon

https://gyazo.com/46d35c410160190d567f97a34b978470 - this is the card

Thanks!