Police Chopper

Well I was woken today with a loud humming which appeared to be from outside my bedroom window and when I looked out this is what I saw. West Mercia Police Helicopter, which was about 100ft from my house looking over the near bye woodland.

They appeared to be giving it a good go as they were above for about 40 mins giving me enough time to snap this.

This is the first ground to air image i have taken, I have a mate who takes loads of aviation images so I hope its ok and about up to scratch.

Feedback, tips and advice appreciated...