I would say if you are doing this for fundraising purposes, I would regularely post pictures of people the steemit users actually help or the problems you would like to address with the money. people like to see the difference they create. probably use regularely the popular tags photography life mindset and maybe the tag charity so people can find your work? also i would end each post with a wallet address for donations? but it would be great if 100% not 40% of the wallet donations go to the ones who need it. Dont steemit as an occupation, especially when you are new. do it as a hobby next to your normal job and fundraise with intentions to do good, and help in a sustainable way.