Its not an opinion, its a well researched fact a "welcome screen" is not in your best interest.
The center justified text...why? Its all over the place.
I think its just too white, its blinding.
The fonts and the buttons up top dont fit very well together, the lowered letters (like g) are merging into the strip below. the rounded button vs your use of rounded corners elsewhere dont match.
you have it set so that you cant simply cut n paste an URL from your site. its always the homepage. otherwise id also be able to tell you what pages are having issues. but, instead Ill just say the gallery navigator isnt working in FF3, the text and "next/prev" buttons are overlapping.
theres always too much space between your navigator and the stuff below it. the spacing overall is way too off.
i think it needs a new color scheme...