Assist in Estimating Calories?

I went to a restaurant last night with my husband and I can’t stop thinking about whether or not I estimated the calories correctly in my salad it wasn’t a chain so I couldn’t get exact information. If anyone could offer a second pair of eyes and opinion that would be great. My journal is public so if you want to take a look at my guesses, please do Date 03/12/12

Picture is in my dropbox account because I can’t figure out how to post:

http://www.dropbox.com/gallery/50569624/1/Dinner?h=8ddac1

I should have put a size reference in the pic but the inside part of the plate was 8in squared.

Ingredients:
Arugula
Chicken Breast
Red Onion
Avocado
Parmesan Cheese
Lemon Vinaigrette (there was barely any taste of this and arugula wasn’t “wet” so don’t think it was much)

Thanks so much for your help!