Need help analyzing these two poems and how do the literary devices make them well written?

Stopping by Woods On A Snowy Evening - Robert Frost

http://www.ketzle.com/frost/snowyeve.htm

Whose woods these are I think I know.

His house is in the village though;

He will not see me stopping here

To watch his woods fill up with snow.

My little horse must think it queer

To stop without a farmhouse near

Between the woods and frozen lake

The darkest evening of the year.

He gives his harness bells a shake

To ask if there is some mistake.

The only other sound's the sweep

Of easy wind and downy flake.

The woods are lovely, dark and deep.

But I have promises to keep,

And miles to go before I sleep,

And miles to go before I sleep



Identity - Noboa

http://www.dellwyn.com/thoughts/identity...

Let them be as flowers,

always watered, fed, guarded, admired,

but harnessed to a pot of dirt.

I'd rather be a tall, ugly weed,

clinging on cliffs, like an eagle

wind-wavering above high, jagged rocks.

To have broken through the surface of stone,

to live, to feel exposed to the madness

of the vast, eternal sky.

To be swayed by the breezes of an ancient sea,

carrying my soul, my seed, beyond the mountains of time

or into the abyss of the bizarre

I'd rather be unseen, and if

then shunned by everyone,

than to be a pleasant-smelling flower,

growing in clusters in the fertile valleys,

where they're praised, handled, and plucked

by greedy, human hands.

I'd rather smell of musty, green stench

than of sweet, fragrant lilac.

If I could stand alone, strong and free,

I'd rather be a tall, ugly weed

Need help analyzing these two poems and how do the literary devices make them well written?
Just so you know...the frost poem is about his contemplation of suicide.

the second poem is about a woman who longs to stand out, rather than belnding in with the crowd.