1.5$ is not fair for 1000 unique views for 1 tier countries and for 4 Tier countries it was 0.1$ for each 1000 views most of the views are come from 3 and 4 tier countries you haver to increase the rewards bit more.
And what about referral system i can't find any referral system there hope you will add that.
Adsense allowed to display ads on this types of the site   you have to add other ad networks add to .
Thanks