Hi, review request

I am new to Go and this is my 4th or 5th game here. Can anybody review it for me, I don’t understand concept of area/territory etc. very well and don’t understand why I won so many points in this game. here is the url:

I’m also embedding it here for review.

Thanks.

3902270-497-nullx002-EmanuelNunez.sgf (3.5 KB)