You mentioned that you enjoy Shakespeare & his sonnets. Your poem "To the Moon" had sonnet-like rhyming & a final couplet-like few lines at the end, just like a sonnet.
I would like to comment on your last few lines & then refer you to Shakespeare's Sonnet 29. They are so alike! Here is why:
You have such sadness & remorse that you have lost a love, but your words also say that when you think about your lost love you have feelings of joy as you remember him. In the final couplet of Sonnet 29 Shakespeare says that even though he is a sad person because of things that have happened in his life which he regrets, when he remembers his loved one, he becomes so happy that then he would not even change places with kings for possessing the memory of his loved one.
The comparison in your final verses & Shakespeare's final couplet are very similar in my eyes. And I think those words are sensitive & meaningful.