Hello! First and foremost, I absolutely loved this poem. However, you might want to consider changing the title. It was a little misleading to me. When I read the title, I expected the poem to be about the death of a loved one or something and how soon they become a memory (but instead I found this lovely poem!) You might want to change the title to something about how our entire life is just a series of images or how nothing ever lasts for too long, they just become memories. I don't know, that's just me. The title does fit a little, but I guess to me it was misleading. I did enjoy reading it. It's dramatic yet simple (the best kind). Don't stop writing, you're doing great!
"A story doesn't have to always reflect reality; it can create reality as well." -- David Levithan.
There are some things you can't share without ending up liking each other, and knocking out a twelve-foot mountain troll is one of them. — J.K. Rowling
I can't find anything bad to say about it, so, well done. 
