Old Glory

You've already mentioned that tgis was something you had written quickly, it'd have been really nice if you'd have guven us more insight into what the person's achievements actually were or who he was. The poem would havemade much more impact on the reader had they know more about the person, his personality, his endeavours or even what caused his downfall. As eveningstar already mentioned, it raises way more questions that those that it answers.
Although it is a pretty good way to make the reader think on their own and possibly interpret it in their own way and relate this with other instances or examples from their own lives, I'd still suggest you to incorporate more elaboration about the person you're writing on.

The theme of the poem is something I personally love and I encourage you to write more on it.

It could've been made much better by using more similies or metaphors and other peotic devices, just so that the reader is more interested and gets involved with it. Personally I think the poem just doesn't make the reader think about it after they have finished reading.

Keep writing mate.
Cheers!

This is a post apocalyptic, 'Look on my works ye mighty...' kind of declaration of the human race's past achievements, from what I could tell. It paints a vivid picture of a mighty entity, once uber-powerful and omnipotent, but having faded away slowly until there was nothing left. Quite chilling in it's own way, but also with a quaint kind of majesty. It presents Mankind as a sort of tragic hero, with potential for greatness but ultimately felled by its own flaws. I really like the idea and premise for this poem.

There are only two criticisms that I can offer for improving this, however, as it's already quite a good piece.

For one, it ends quite abruptly. One moment you were telling us about Man's achievements and adventures, then suddenly on the fourth line you talk about an abrupt ending. In the fifth line we learn that 'his dreams turned sour'. And then in the sixth line we get back to a final declaration of long lost glory.

This format raises more questions than it answers. And while that's not necessarily always a bad thing, the abruptness of the ending left me feeling a bit dissatisfied. Why did His dreams turn sour? Why did it all stop so suddenly? What happened? If you elaborated a bit more on these points, it would probably leave the readers feeling more satisfied and less confused. Just saying that it all stopped and His dreams turned sour is not enough, you have to explain to the reader too why these things happened. What caused this drastic fall from greatness to obscurity?

Another suggestion is that you might consider making a little more use of metaphors and similes, instead of stating facts directly, you may try to present them in a slightly more indirect way, through hints and comparisons. After all, indirect revelations are a part of the beauty of poetry! This is just a suggestion for future poems and not something you have to apply in this one itself.

Apart from that, as I said, I really liked the subtle despair depicted in this poem, which nonetheless maintained a quiet dignity throughout, a calm and rather detached tone as if describing something far away that no longer touches or affects the poet. Well done and keep writing!

Sorry, I submitted this without marking it as a review by mistake! :p