Many of the images you have on your site aren't very well done, with jagged edges; spend some time with a good graphics editor and learn about the various options to overcome this. I stink at this sort of stuff myself, but I'm sure many other members can give you pointers on it.
As indicated, the red-white-black color scheme is way too overpowering; reducing the contrast will calm this down (think darker red - pale gray - dark gray).
Also, the font chosen doesn't work at all; a sans-serif font like the ubiquitous Verdana or a similar one will work a lot better. Especially the bold white menu texts against a black background are very nasty, and hard to read at that. Bit big, too.
Lastly, as mentioned before: the coding is hideous...
I never expected someone to build a package that churns out even worse code then Frontpage does...
If you're into this web building stuff, I warmly recommend learning about coding, HTML, CSS, etc. It may seem daunting in the beginning, but the web is teaming with valuable resources, this forum being one of them!
Start with exploring the resources mentioned in the "HTML & CSS documentation
" sticky, and keep firing your questions in these forums.