None of those phrases make sense to me
I'm a native of the U.S. living in Montana.
None of your example sentences make sense to me. Or, more accurately, I wouldn't say anything using any of those phrases. But it's possible you're trying to use a form of "well-rounded."
- adjective
You describe someone as well-rounded when you are expressing approval of them because they have a personality which is fully developed in all aspects.
- adjective
If you describe something that is made up of several parts as well-rounded, you mean that the way that the different parts are put together is good, because there is not too much or too little of any one part.
well-rounded in American English
(ˈwɛlˈraʊndɪd ) adjective
well-planned for proper balance, "a well-rounded education"
showing interest or ability in many fields or showing many facets of personality, "a well-rounded character"
fully developed; shapely, "a well-rounded figure"
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
well-rounded in American English
(ˈwelˈraundɪd) adjective
having desirably varied abilities or attainments
desirably varied, "a well-rounded curriculum"
fully developed; well-balanced
Most material © 2005, 1997, 1991 by Penguin Random House LLC. Modified entries © 2019 by Penguin Random House LLC and HarperCollins Publishers Ltd
well-rounded in British English
adjective (well rounded when postpositive)
rounded in shape or well developed, "a well-rounded figure"
full, varied, and satisfying, "a well-rounded life"
well planned and balanced, "a well-rounded programme"
If this is the case, what would I expect to hear?
I'd expect, and would personally use, the following,
Your writing is well-rounded.
Meaning that your grasp of grammar, syntax, vocabulary, and writing style is good.
In this context you could say:
Your writing should be better rounded.
But that would sound very odd to me and would take me a bit to work out its context. That might come from my background as a technical writer. In the technical writing world, specificity is important. Therefore, I would expect to hear:
You need to improve your syntax and grammar, but your vocabulary is good.
If what I have just explained doesn't reflect what you are trying to understand, please edit your post to provide more detail about the meaning of the sentences you provided.