It looks like you are doing not bad nowadays. More than 2k followers are nice for an author who does not pay too much attention to the account. You can get more real followers from 1394TA. I did so when I wanted to promote my fan account with pictures and news about my Kpop bias. I did not pay much, but they got me more than 1000 new followers in just a couple of minutes, and it was very cool. All those accounts were real, and the risk of getting banned for this is minimal. They will not be able to prove that it is not all those people who decided to follow you.