URLS: poor
these are good:
http://www.satellitesights.com/satel..._United_States

these are bad:
http://www.satellitesights.com/satel...p?category=134
could be: http://www.satellitesights.com/animals/
or even better: /animals+satellite+images/

http://www.satellitesights.com/satel...php?country=CN
could be: http://www.satellitesights.com/china/
or even better: /china+satellite+images/

HEADINGS: very poor
H1 isn't used at all. First heading is a H3 follow by H2.
Poor use of heading text - few keywords.

That's enough for you to get stuck in...