It's a nice sequel. But there was one problem that bugged me a lot. I have told this to lots of people, and I hope it's good advice for you.
When writing your story, you should paragraph when people talk. For example:
Instead of:
"Hi Bob!" said Joe. "Hello, Joe," Bob said.
It would be:
"Hi Bob!" said Joe.
"Hello, Joe," Bob said.
This makes it a lot clearer on who is speaking, and easier to read.