"Bad" I can't say, you took no risk, and thus made no mistakes, but also displayed little skills.
Using triangles for the bodies is a good idea, as triangles are a good shape, you can do anything with triangles. Have you consider increasing the amount of triangle, as such?
I dropped the round heads in the last one, because honestly, circles are an overrated shape. And you can do anything in triangles, why use anything else?
You can find any number of foolish ressources online, none of them tells you the truth about triangles. All sorts of websites and yet more websites try to teach you how to draw, without even mentioning triangles in any of their tutorials.
Any homemade card is more thoughtful than a purchased one. So I don't think it matters if you are a good artist or not. It's a thoughtful message and you created it yourself.
If all your art looks like the single image provided, then the honest answer would be yes, unfortunately. That said, one image with minimal content isn't much to go off, and as with any skill, this will change over time, esspecially with practice. Notably, this also looks like something dedicated to a loved one, so at that point intent matters more than artistic skill anyway.
Also, the first dialogue is on the right because that’s who’s speaking. Considering I draw everyone of the same gender identically, I should’ve reversed the speech.