Applied Illustration Direction

At this point I felt that I needed to pick a direction I was going to go with my posters as I'm happy with the posters I've made so far but I think for my final ones I need to decide on a concept that links all the posters that I make from this point on. My initial idea is to pick one band and just do posters for each of there albums, though I feel this could become restrictive but it would definitely focus the direction of the work more and give it a unified approach. My other idea was to do a series of posters for reissues of albums that got a 10.0 from pitchfork media, at this point in time I need to do more research into both ideas and look at bands that I could possibly focus on.