summer

[tectak]

A warming sun returns again
It melts away the snow
The sea is freed from icy chains
Winter is letting go

Hi grey,
This is a nice little piece of terse-verse. There not much said so not much to say. Nonetheless, picking nits is just as satisfying on a bald bonce as on a bouffant, so here goes.

"A" warming sun? The warming sun. Returning means "again".
"It" is not decisive, especially as you do not punctuate after the "again". If you wish to link L1 and L2, "it" doesn't do. Try "to melt away the snow"
As we are in polar seas here, why else would the sea freeze, I can almost, but not quite, accept the winter shift to summer rather than spring, as I imagine we are talking 6 months darkness, 6 months light. You could make more of this if I am right,or less if I am wrong.
Capitalising of line starts is old hat, no substitute for punctuation, and if you choose to abandon punctuation through choice rather than ineptitude then the practice is destructive to both flow and meaning.
Nuff' said.
Best,
tectak