Timely. I was going to comment on your other thread, but I decided not to because you didn't ask for feedback. 
Does it look professional? Not 100%. The only thing I don't like is your logo. Don't care for the cheesy-looking camera graphic and the font looks "cheap" to me.
Looking at your Wedding Page I see two things. You have 5 photos on your banner. It looks like your white balance is off on the center photo. Shouldn't white dresses be white and not yellow?
As a photographer, I really don't care that you use "...prime lenses as fast as f/1.2...." and I'm sure your customers don't care either. I would remove that and/or re-phrase it.
What portfolio? If your talking about the individual galleries, no major issues there. My only suggestion is to show more rows. I would increase it from 3 to 5 rows.
You have some format/centering issues on your Senior and Portrait page. The text isn't centered....I'm using a XP, Chrome and 1024 x 768 monitor. I would increase the width of the block of text a bit.
I don't own a mobile device....including a cell phone...LOL!