Research & Planning - What makes a good short film?

I have conducted some research on short films and what makes a good, effective short film. The below website I found very useful and I know it is from a good, reliable source (BBC) so I will take some tips from here. The top tips from this website on what makes a short film is:

• An Exciting & Original Idea
• A Strong Script
• Good Acting
• High Production Values
• Make It Short
• A Strong Beginning
• Avoid Repetition & Punchline Twists
• Exciting New Techniques & Style

http://www.bbc.co.uk/filmnetwork/filmmaking/guide/introduction/what-makes-a-good-short