Okay, time for some micro-reviews. If you want more, ask and I'll get to you as I have time.
You've Built Worlds, Haven't You?- Interesting concept, but the execution didn't do anything for me. Maybe there's another way to describe your plot without actually discussing it?
Seraph- I liked this piece alot. The thing that holds it back is that it's not a short story. It works well as a first chapter, but it doesn't have the same feeling of cohesiveness that the other short stories did.
Nostalgic- This was my first place vote. You pretty much reviewed your own piece with your non-qualifying paragraph, so I'll just echo that
Reaching Out- The emotion of the piece just never hit me.
Uncaptured Jewel- Nothing happens in this story. The writing is good, but there's no plot. I guess there's the recollection of their meeting, but those scenes only serve to reinforce the chase aspect of the relationship. I think juxtaposing tjhe main chase against some totally different aspect of their relationship could really improve this piece.
Reunion- Maybe I just don't like private eye stories.