I'd say it's pretty good for your first time. Here's my 2 cents' worth.
I would suggest cleaning up the grammar and punctuation.
As to layout:
Everything seems to be shifted to the left, rather than centered.
You are using line breaks to end lines, rather than letting the text wrap. It's causing your text to jump to the next line before it reaches the end.
If you are going to be marketing to the American public, I'd suggest putting prices in American dollars. Or, at least provide a conversion chart or something similar.
Click the first link on the Apartments page. I understand the idea behind the list of properties, but you need one for the first apartment. Don't just start with Property #2.
On that same page, your buttons don't line up. Your vertical and horizontal spacing are not consistent. Also, there is gray behind some of the blue ones.
That's all I have time to address right now. Hope that helps.