General questions about child accounts

Hi I am trying to grow my main account @laceyandkevin. I have currently 50 accounts running. each account will send messages to new followers to go check out my main accout

What is the best way for a child account to look like? Right now they repost travel couples photos.

My follow sources are to follow people that liked/commented on same niche profiles... is this the best way to do things?

Just looking for some guidance. Thanks

They should look like the same niche your main is. Usually just use the same pics from your main with a little modifications (be careful and change the MD5 of them as well).