[ His writing grows messier as he gets more into the exercise. ]

Then for the next one, you might do better if you replace 'warmth' with 'heat' because there's no rhyme for 'warmth'.

So 'where crisp new air cries for remembered heat'.

And then the next one:

[ Across the adjacent pages are a heap of scrawled words which rhyme with 'heat'; it's him brainstorming phrases that might work. Amongst the mess, he underlines 'loss may greet/meet' but then his writing abruptly stops.

Ugh, this is hard. ]