She had cried all night long. Even now, her eyes were still swollen.
I wrote the sentence above, someone said that I should remove 'were' from the sentence, so it became:
She had cried all night long. Even now, her eyes still swollen.
My reasoning for using 'were' is because 'swollen' here is describing her eyes. It's like saying, "Her eyes are big", for example.
But the correction is read smoother. And somehow, I agree it is the correct one. I have read this kind of sentences before in novels I have read, but I hesitate to use it in my own writing because I didn't know what is the rules.
My question is why it is wrong if I add 'were'? Is there any grammar-related explanation for this?
Here is a follow-up question.
One of the answers mentioned about Compound Sentence and Modifying Clause. I have tried to find the rule for this on my own, but instead of finding the answer, I'm getting more confused. So please help me to figure out.
I took some examples from my favorite novel.
Her eyes were soft with sleep, her silver-gold hair all tousled.
His mare was staggering as she approaches the city gates, her sides pink with blood and lather, her eyes rolling in terror.
In the above examples "was/were/etc." are absent. While in the below examples, the author used "was/were/etc.".
Her eyes were red and puffy, but the child was in her arm, bundled tight.
Her lip was trembling, her cheeks were wet, her eyes were red-rimmed.
I know if I use "but, yet, and, which, etc." I should use "was/were/etc.". But in the last example, the structure is, in my opinion, the same with the first set of example.
So, please help me to figure this out? Thanks!