Overall, the poster looks quite good to me.
And I'm agreeing with eve, don't toss the arrow. It draws immediate attention to the essence of the presentation. Without it, the attention would be weakend and the information could be lost (considering that most people only take a quick glimpse of it, this is not what you want).
Some details maybe (but probably will be unnoticed by the regular viewers).
- 'Joe's café band' on the cup could use a little bending so it looks really printed on the cup
- Lost shadow from the glasses card on the bottom right corner of Richi's picture
- Fontstroking looks oké, maybe 1 pixel too thick, but no need to lose it.
But that's it, as I said looks pretty well to me
Welcome to psc
ps: I like the detail in the glasses where you magnified the picture a bit. Nice touch.