It doesnt get repetitive, but it doesnt stand out either.
Someone who succeeds by this is TCA
Prefer D-ring binders (not O-ring) to minimize pressure on cards in the center
These larger booster packs are full of cards all based on a single theme, like a color or color pair
Even within the rules of fan-art I listed above: people buying it know theyre buying a proxy, a replicated card (at least, assuming its not someone trying to hock a proxy off as being authentic) the fact that it does use authentic artwork is tricky, and maybe the most grey of greys involved proxies dont interfere with the rights-holders from selling cards because, well, the rights-holders dont get ANY money from the secondary market to begin with
In the Korean version, there is an error card with the words Water Dragon Cavalry and Sea Dragon Cavalry reversed in the name