As this contest is about engagement, you cannot write about yourself. You can earn STEEM by writing about a fellow Steemian artist (and he/she just might return the favour). You can write about any artist/track you like, as long as it's an independent artist. There aren't really requirements but the more links, the better because that way, if readers like to follow on more accounts, they can.

More information (and everything you need to know) here: https://steemit.com/bandsaboutbands/@misterro/bandsaboutbands-s1-e1-update-or-10-steem-prize-money