Run an effective critique through silence. Remember Day 3 of the Design Sprint dubbed "Art Gallery?" With the compositions posted up on Miro or a white board depending on remote or in-person setting, silently allow people to walk around the room and put sticky notes on anonymous designs. Thereafter, have the "decider" pick a couple of "blue ribbon winners." Thereafter, have each team member "present" their piece while answering questions on the post it notes. Finally, vote whether to hybridize or A/B test designs. Hope this helps! Let me know if you've any further questions about facilitation. I'd be happy to help.