Hi Dave
Well I think for a first time effort I think you have done really well mate, well done. Doing things for the first time is always going to be tough - but like everything its a learning curve.
You had a couple of good angles there, and I think if you had other jobs on there as opposed to one - with maybe a cleaning procedure to show the steps you take, would look impressive.
Go for it mr Speilberg!
Cheers
Kev