The Bumper Sticker

[tectak]

Our neighbor, Jeff, is sitting out,
while drizzle falls, he leans and stares
as water gurgles down the spout
beside the window I look though.as and while are mutually countered. One should go...as should though. You mean through.

The man has sat there now for years,"the man" is reflexive. We know he is a man, we know he is "the" man...why demote him so early in the piece?
not more than fifty feet away.
But still, my mother has her fears…
he talks and laughs up to the sky.Having fears? Because he is close or because he is far away or because he is sitting or because he is a man or because he talks...well, that is what the "but" implies.
He brings his two pet snakes outside,
and lets them slither on a branch
he found on Assateague and tied
up in the roof over his porch.Nice observation. Very simplistic in a good way.

When it stops raining, I’m sure he’ll
be working on his Cherokee,
which wears a crackling, but still cracking?
there, “Veteran” bumper sticker.

Nice cameo. A few nits but the main problem is the pointlessness as perceived by the poor, uninformed reader. You need to give more to be able to write less.
Best,
tectak