Now and Then

[the man with the spoon]

Now and then, I see your face
in a memory, in a picture.       ----------> try to take out words like a--> maybe just make it "in memories or pictures"
I wonder how it looks today
under the shade of age.                         the flow between these two lines could use work, maybe : "i wonder how it looks today, under (x) years of age"
Once in a while,
since i don't think so much about you     -------->    scrap line maybe, try to get the point across another way
anymore,
I believe time has done away
with its beauty;

That your eyes don't shine,  ----------> like this verse, but maybe get rid of the first "and"
and your lips have thinned,
and your skin sags.

Other times 
I imagine you dignified,
wearing the crown of experience---
gazing neither behind or ahead,
but staring squarely at the moment.
You watch as it passes,
taking with it another 
fine detail of your sunken face...
Another detail,
like all those gone lost 
somewhere in my mind.

 great potential in this poem, needs a bit of work, i have made some changes that i think might help, above.