Sorry but I'm not sure if tagging people is the best way to get reactions from them :D
I'm afraid that would encourage people to tag other people to posts, like they used to do few years ago. It was terrible and awkward, even though I was a nobody back then.
I shall keep tagging Apsu and only apsu in every post.
But but yeah, no worries i'll be sure to only tag people that im doing fanart for. *(+Apsu tag)
Check out communities on peakd, you gotta post within them, not just tag a community.