Absolutely no broken links. Clarity of grammar, use of language articulation, spelling, punctuation will be considered. Your site will have good content and originality. Links only sites will not be reviewed. Unfortunately the reviewer only speaks and reads English and as such foreign language sites cannot be reviewed.
Music files are fine provided that they are of an acceptable sound level.
The ability to switch 'off' music from within your page will give the applicant an extra edge. An emphasis will placed on sites that get their message across without the need to over indulge in the use of the latest web technology. If 'Flash' is used in the construction of your site then use it sparingly. It takes an inordinate amount of time to load. An overuse of non associated animation will also be frowned upon.