If you want to succeed in tumblr with a commercial profile (not as an individual):
1) choose a clean template (your layout is dirty and horrible)
2) post original gifs (create them yourself)
3) follow and like/repin nice pics of individuals of great following
.. do everything necessary to get lucky and go viral
As for me - I use Tumblr for pushing the brand and milking the traffic from it to LustJobs.com (and it works just fine).
Our Tumblr page:
http://lustjobs.tumblr.com
.. we went viral yesterday with this post:
http://lustjobs.tumblr.com/post/6053...-those-moments
Good luck,
Helmuts
p.s. whatever you do you have to be proud of it and then everything will be ok ;)