There's a version after the good one
The stopping point on a design isn't where ideas run out. It's where you stop deciding and start adding, and the shirt after that one is worse.

Four apricot tees, same fox head, four passes. The first is heavy and rough. The second is cleaner. The third is cleaner again, confident, done. The fourth has more of everything — more fur, more shading, more detail in the eye — and it's worse than the third.
Nobody printed the fourth one on purpose. It's what happens when you keep going after the good one already happened.
How do you know a design is actually finished?
You can point to it, one draft back, rather than feel it in the moment.
The third shirt in that row is the one to print. Not because it's the most detailed — because every line in it is doing something. The eye, the ear, the jaw: remove any one and the drawing gets worse. That's a different test from "does it look impressive," and it's the one that holds up afterwards.
What does over-working a design actually look like?
More lines that don't change how the design reads.
The fourth fox has extra fur texture and a more rendered eye, and from three metres — which is the distance a shirt is actually seen from — it reads exactly like the third one, just busier. Fine detail below what the weave can hold fills in anyway, so the extra work isn't even preserved. It's added, then lost, then still there making the shape harder to read up close.
Why does adding more usually make it worse, not neutral?
Because every line competes with every other line for the same silhouette.
A design reads as a shape before it reads as detail. A short palette and a few decisive shapes travel further than a lot of small ones — add enough fine strokes and the silhouette doing the actual work gets buried under texture nobody asked for.
Is there a way to tell before it's printed?
Cover half the design and see if you can still name it.
If the fox is still obviously a fox with the fine whiskers and extra shading blocked out, that detail wasn't load-bearing. If covering half of it loses the drawing, that half was doing something. This is a faster test than staring at the whole thing asking if it "feels done," because "feels done" stops working once you're two hours in.
Does this happen to people who are good at this?
Especially to them — competence is what makes the fourth draft possible.
Somebody who can't draw a confident line stops at the second pass because the third is out of reach. Somebody who can render fur, shading and a proper eye can keep adding indefinitely, because each addition is individually well-executed. The skill that makes the third drawing good is the same skill that makes the fourth one possible.
What's the actual tell that you've gone too far?
You stop making decisions and start adding things.
Early passes are full of choices: how big is the head, where does the tail go, one colour or two. Late passes are additions — one more line here, a bit more shade there, none of them changing the answer to anything. Once the work has quietly turned into adding rather than deciding, the design finished a step or two back.
Can you actually get back to the earlier version?
Yes, if you kept it — which is the real argument for keeping drafts rather than overwriting them.
The third fox doesn't exist anymore once the fourth one replaces it on disk. Keeping the version before the one you're currently unsure about costs nothing, and it means the honest question — was two drafts ago better — has an answer you can look at instead of one you have to remember.
How do I get one made?
Describe the direction at JustOG and look at what comes back before asking for more. Pick one, drag the crop frame, see it composited on the real garment, and it's made to order and shipped.
Designs other people have published are in the shop.
Three foxes back, the drawing was already finished.