What do you think of my personal web page?

Your off to a good start. Here are some examples of websites that are excellent (http://www.commarts.com/webpicks/). Great use of Whitespace, Fonts, and Graphics. I've searched Web Design Basics for a better understanding of the concepts of Design, see (http://webdesign.about.com/od/webdesignbasics/u/webdesignbasics.htm)

Very nice designs.

I click on the Inicio/Start tab and expect it to do something, but nothing happens - then it becomes clear to me that I’m already looking at your start page but it’s not the most intuitive. Maybe you should just leave out a link to Start at the top of the page? If this was a tab that appeared all the time I could see how you could have a Start link on it, even when we’re on the start page, but in this case the only time we see this start link is when it’s not useful.

Also, at the bottom of the page, there’s no link to Portfolio - curious why you omitted that and kept the others.

I also clicked on the link to the land.io page, and the Home, About, Contact links don’t work (it looks like you left the href attributes as “#”)