Darn! This would have been easier to finish with one more spell point!
It looks like it is going to attack either Tiana or Freya or Talin, who has just rearmed.
The dwarves close rank in front of the rest of the party, and everyone else will be behind the dwarves. The force web prevents it from attacking Freya, right?
Freya shoots at the retreating mimic (#2). Talin fires at the approaching mimic (#2). Abigall will hurl a stone at the second mimic. Anna will back up and get her bow out.
Is the mimic-2 clearly moving into melee range for the party? If so, the dwarves will charge toward it. Whichever one is getting attacked will fight defensively (a defensive charge?

) and the other will hack at the mimic.
Fido attempts to free himself. Tiana will hold the runed quarterstaff threateningly toward the downed mimic (#1), but will neither attack nor get within melee range of it.
What dwarves call ale, humans call whiskey. What dwarves call whiskey, humans call dragonbreath.
As for Talin's move, can't he move back and take an action? Just a "explain the rule to me" question.
Good job. You really beat up on that first mimic. I thought someone was going to die! But I think you have gotten out of this OK.
Someone did.

Spinning it to a positive though, at least it's only Fido who is massively injured and not the others... yet.
Freya HP 24/24 AC 16 (17 two weapons)
Kilian HP 20/20 AC 19 (18 no shield)
Talin HP 29 AC 16
Tiana HP 11 AC 12 SP 8/8
Fido HP 9/9 AC 16
Anna HP 12/12 AC 15 (19 defensively)
Bruce HP 20/20 AC 16 (15 no shield)
Red Oak map
Red Oak loot