Is this sentence grammatically correct (version 2)? [closed]

Solution 1:

In everyday speech or writing, nicely flows is out of order.

I can't cite a prescriptive rule, but as a native speaker (US), I would always say "flows nicely" in your context. Perhaps for some poetic reason, or perhaps to emphasize flows as opposed to some other verb, it might be ordered the way you have it, nicely flows, but it's hard to construct even such a poetic or emphatic sentence that doesn't sound awkward. ("I'm telling you, it nicely flows! It doesn't nicely meander or nicely stumble!")

Never stops the reader cold seems fine to me, although the meaning is a bit nebulous. I take it to mean the story never jars the reader violently out of the enjoyable experience of reading it.