Heya, I've been holding onto this card for a while now because it always bugged me that the pokemon name and picture are from Gloom, but everything else is from Venonat. I have no idea how to tell the fake cards from the real ones, would appreciate it if anyone has any feedback regarding this.
Looking at just the design the way Gloom is drawn looks way too clean to me and looks like it's either cleaned up gen 3 art or something from the anime, neither of which would be used in a gen 1 card. Bootlegs can get pretty wild we have several which have misspellings including a Spinark which has the name Sugimori,but hey at least they're still unique in their own right even if they aren't valuable.
The easiest way to tell if a card of a fake or not is also to compare the back to a card you know is legitimate, usually it's a ligher or darker color, has a thicker outline, has weird saturation, etc.