Website is an important role in your business,therefore inportant to practice in designing your website,which can reach the maximum number of visitor that view your website
Make sure you have a clean direction,on and contained. The navigation menu should be reat so visitor know how to navigate your website without confusion
Number of image should be reduced because it makes you site load slow.If an image is necessary,make sure you optimize an image editing program to then so that the image size to a minimum.
Keep your text paragraphs,if a paragraph is too long,you have to divide it into separate paragraph so is to large then this will deter visitor reading your content.
Make sure your site meets web standart at www.w3.org. If your site looks good and great in internet explorer,but in firefox and opera will be horrible and you'll lose a lot of visitor.
Avoid using scripting languages your site unless handle or manipulate data,not for visual effects to your website. Heavy script is not supported in all browser,so same visitor will lose your information.
Us CSS for you page content because they save a lot work by styling all elements on your website together.
That's a little review abouu designing a good website may be useful. Do not like my blog is a shambles.
Good luck...for you