No, it's fine. Tips to help my writing are always welcomed :D

I actually knew it was the end of the performance, and what made Xris notice the crowd below was the applause. If one has a crowd like the one Pyotr had, even if not everyone claps, the sound would still be noticeable for someone right above.

I was also thinking that Xris would land while Pyotr was having a conversation, interrupting it and getting in the midst of everything.

And about the "Spot", that is Xris's thoughts. One has to remember to stop the good story telling when it comes to talking and thinking. Say your character is a non-too-bright thug, he would be thinking something like, [i]These five allies off of main street are my hunting grounds, and nobody, especially that smart-alack, red-headed twit, can do anything about it![/i]
I'm not trying to be a mean know-it-all, I'm just trying to answer your questions ^^

However, you are right about the post. Now that I look back over it, I could have done much better. I have to go for now, but I'll brighten it up a tad when I get back :)