Graphic Novels Pricing. (Patreon)

Though its a very stupid question to ask , but I wanted to know an honest opinion about this, the graphic novels I see on gumroad and HicceArs(and other places where death-fetish artists like me sells their graphic novels), compared to my ones, the pricing is kinda confusing.

Sometimes I see Novels containing hundreds of 4k pages selling for as low as $10-15 dollars, sometimes a 40 page Graphic Novel sells for $20.

As my previous graphic novels lacked the quality, I decided to to price them as low as $5 or $3 , I wanna know, did I do a mistake by keeping the price low?

By the way I'm thinking about upping the price now, as they are more polished and done in Daz3d instead of Blender and also, the assets I need to use in Daz3D (Though most of them are either free or 'borrowed', and I intent to buy them myself in the future so I need the money.).

I think $6 will be the lowest price now, and $10 will be the highest. What do you think? Or is it still low?

PS: Also I really want to open a gumroad account but my region does not support PayPal, so I'm stuck with Patreon and Hicce for now :(