Sorry about all the Spam

I discovered recently in my attempt to increase my traffic and draw attention to my artwork, I have inadvertently become a spammer.  During all of the updates I have been working on since December, I noticed a drop in my number of views.  Upon investigation I discovered that I've been doing some things that Google penalizes.  I had been reposting some of my work over at my tumblr, Wind of the Gods and duplicating thumbnails for monthly review posts at ARS JWC.  SEO rules are kind of nebulous as to what is effective and what is detrimental.