Alt title: A sketchy question (but I didn't want it to be confusing)

So, what qualifies as a sketch? Typically when I think of a "sketch", it's something like this:
post #2878564
Rough overlapping lines, to build out the shapes of the character and various adornments, for later relining and cleanup.

However, looking through the tag, there are a number like this:
post #2878325
Where at a distance or scaled down, it looks like a completed lined piece with a well-formed "solid" character. It's just when looking at it larger size can you tell the lines are somewhat sketchy, but the coloring and some of the lines are finished-quality.

Or like this:
post #2879973
Where the line work is very clean and the character is well-formed, but if you look closely in some parts, you can see where some of the lining is a little rough.

I've already needed to remove the tag from some posts that are definitely not sketches, but I'm having a tough time figuring out where the line is (pun not totally intended), as there's some I wouldn't call a sketch, but I wouldn't remove the tag if others disagree.

Is there any one element that a post could include to definitely make it a "sketch"? Like, if a post has sketch lines, does that automatically make it a sketch, or if the post is fully colored, does that exclude it from being a sketch?

If the lines are sketchy or rough, it's a sketch. Not all have guidelines.

strikerman said:
Like, if a post has sketch lines, does that automatically make it a sketch, or if the post is fully colored, does that exclude it from being a sketch?

Colored_sketch
Usually doesn't mean always/never.

There's a pretty subjective feel on what constitutes a sketch.
I've seen before artists calling a piece they worked non-stop
for 5 whole days a "sketch".

And I'm like, are sure you about that?
Hm~

post #785641

I would say that even chicken scratching (sketchy lines) shouldn't be used as
the sole reason to tag something as sketch. Completion, coloring and stylistic
choice should also be considered, maybe even other things I'm forgetting to list here.

That said:

Edit: Some misspellings :(