Ive tried to optimize each page for 3 different key phrases, I just wnated to make sure they didnt look spammy, can you have a look at red reflective window film which is similar to most pages this has been optimized for "red reflective window film", "red window tint" and "reflective window tinting"
Just a little on the first few lines. Other than that though it isn't too bad. Maybe a sentence between each mention might help. Being a somewhat long phrase kind of makes it stand out more to, so having it at the beginning of too many sentences will come off as spammy. I know what you're going through though, sometimes it is hard to use a keyword without it being at the beginning of every sentence. Not a bad site though.
Ive tried to optimize 3 keywords per page, maybe I should lower this, whats the best amount of keywrods to optimize?
All the three looks good, however I think you should also change the content in the header of your page, which starts from the html of your site.