"1996-2007, 42-1"

[The Four-Eyed Cat]

Let me start off by saying my personal take on it; the poem perfectly captivates one of the final stages of mourning; the pain and sorrow isn't as daunting as it initially was, as grief is replaced by remeniscing past memories of a person with a bittersweet taste to it. Your vocabulary and imagery does exactly that.

Down below are a couple comments

The drawbridge, of her bikini                                                                 
Half pulled-down, to that round fully tanned cheek                                  Junxtapositioning, while tan-lines and tanned might pass, cheek sounds repetitive.
To cheek, no tan lines on her tush                                                        
Where I put you, but now I must ask

Where did you go, caterpillar? of her and my 16                                   Im not sure what you try to imply with 'of her and my 16'
When you went on the long distance walk,                                           
Along my beer bottle's rim, in the park,
Across my hand when I lifted you,
To that connector road of nylon and polyester                                    Solid and vivid imagery

I knew joy, as we stripped,
And ran, to the water's edge

There was a graininess to the sand,                                                 This stanza in particular doesn't flow that well. Try omitting some words                                          
Like it would take a long time to go                                                 "Like', for instance, is completely unecessary.  
Through an hour-glass, perhaps get stuck                                          
Making Lake Tahoe timeless,

To be cherished in dividends
As we returned each summer and winter

It reminded me of when we were 13, 
When we decided to jump, clothed, into the Pacific
For continuing traditional last cross country practices;
We had dated three times, during the duration 
Of middle school

Now, I remember you by going to the negative                                       
Space of where we were, because I still do hold
Those places holy, and I do need reason, 
When looking back on our departures

Butterflies are free, they say, and you are
Married and living in someplace where we
Never went, and the chaos of having known you
is less like the Pacific, and more like

The aquarium, famed where you are,
Down in Monterey, where I dare not venture.
The cost of admission is not worth it.

Pay some attention to the flow of your poem and i'm sure you'll be able to procure a gem! As people taught me here; read your poem out loud - if the rhythm or flow feels rather unnatural, then you know you'll have to change it. 

Also keep an eye out for your use of grammar. I'm quite guilty of it myself - but keep an eye out for unecessary capitalization of letters at the beginning of each sentence (I know, damn Microsoft Word, right?) and punctuation. Every now and then I sawa comma that didn't really belong there.

Thanks for the read!