What have I got myself into???

I bought this cross stitch pattern a few years ago and it's been sitting in my cupboard taunting me! So last night I decided to start on it. It's a beautiful Victorian village Christmas scene and it's going to take me forever!

This is what I've got done so far...

And this is what it's supposed to look like when I'm done. Notice I said "supposed"...I always mess up and loose a few stitches here and there. Does that happen to anyone else? 

Sometimes I wonder where my mind is!