Wow, the second shot you've posted is great! The way you captured all that detail while in motion is really impressive. I think you should be proud of that shot, and congrats for having it printed.
As for the focus in the first, sometimes people prefer a softer focus for some shots so a crisp focus is not always a necessity. It's just when you have a shot that is out of focus, you don't want it to look like user error which is a hard thing to do. Great work though, you should post more if you have them.