for our project we have made an instagram account for a made up production compa

for our project we have made an instagram account for a made up production company and in our group we have to make 5 promotional posters to post on that account (the posts also have to be for made up events/shows) I tried to make some and they didn’t turn out well because Im not good at making posters digitally and editing and things like that so I need help. Thanks! a couple of them can be a reel too doesnt have to be still posters