Looks pretty good in my opinion. I assume that Bono was obtained long before the rest though if he signed it in 93. Adam didn't really use that signature style until later in the decade and Mullen switched to his full name sometime around 2000 or 2001, I believe.
Post it on the Facebook Eastlink forum too, just to make sure there are no doubts. I'm not immediately seeing a problem with it though. Nice item.