Basically you need more links:
ODP's computers and business categories have 150,000 and 250,000 sites listed respectively. Yours have 5 and 30(ish)...
If you are going for a comprehensive directory (all categories) you get compared against the most comprehensive that currently exist (Yahoo, Looksmart, ODP etc) - not the worst.
If you are just trying to specialise then you need to be focused. We do list specialist directories - but they tend to be the specialist directories that have more sites than ODP in their area of specialism. (Also specialist directories don't belong in the category you submitted to, they belong in the topic area they specialise in.)
Existing listings may not be a good guide - our standards have got higher over time, many sites that are listed currently would not be accepted if submitted now if they are clearly deficient to existing sites.
We tend to say, look at your area of focus, is your site better than or at least as good as those who do it best? If so - then you'll probably be accepted. Making a web directory that meets those criteria is a pretty hard thing to do considering the existing sites out there- making one that covers all subjects on your own is probably impossible.
Kind Regards,
Andy