normalization

[Taylor Collins]

Could anyone please tell me if this is normalized in 3NF correctly? Thanks so much.

INFO
info_id (PRIMARY KEY)
product_info_id (FOREIGN KEY)
stores_id (FOREIGN KEY)
model_id (FOREIGN KEY)
age_group_id (FOREIGN KEY)
comments_id (FOREIGN KEY)
serial_id (FORIEGN KEY)
first_name
last_name
email
street
city
state
zip


PRODUCT_INFO
product_info_id (PRIMARY KEY)
date_purchased
price
reasons_1
reasons_2
features_liked
features_added


STORES
stores_id (PRIMARY KEY)
store_name


MODEL
model_id (PRIMARY KEY)
model


SERIAL
serial_id (PRIMARY KEY)
serial


AGE_GROUP
age_group_id (PRIMARY KEY)
age_group

COMMENTS
comments_id (PRIMARY KEY)
comments