Looks good. Here's what I noticed:
The Ghoul takes 2 stress from the attack result plus 2 stress for the revolver's Weapon rating. The Ghoul decides to take a Moderate Consequence (Big Hole in Chest) instead of the stress. Sophia passes the tag for the Consequence on to Lucia.
The ghoul can separate his stress. So, if he took 4 stress, he can take a mild consequence (which soaks up 2 stress) and then fill his second stress box. Stress boxes clear at the end of a conflict, so it's usually better to use those up before you use your consequences. 0X00
She has no problem getting to Disney's brush and picking it up. Because she didn't use it, her Tag on Ghoul #1's Moderate Consequence is lost.
There's nothing wrong with this. I generally let the players decide when and who tags are available to.
I just let players announce, "If anyone wants to use that tag, go for it!" Or I let them be as specific as they want to be.
Tags on consequences usually last the whole scene, so if they player gives permission, anyone can use it. Of course, once someone tags it for free, the tag is gone and you need to pay FP's to invoke the consequence again.
•Ghoul #2, standing near the ink brush, sets up a Block. He'll intercept away anyone who comes near, preventing them from reaching the brush.
and
Her Stealth is +2. The final total is 9 (2 + 4 + 2 + 2 - 1). That more than beats Ghoul #2's Block of 5.
-regarding stealth: It's a 'block' vs perception
You could adjudicate that, since the ghoul did not notice Lucia, she was not subject to the ghoul's block.
I'd have made the ghoul make a perception check versus her stealth. If he succeeded, she'd need to try to overcome the block, if he failed, she could just ignore it.
The way you did it works fine too and might be a bit more efficient. But, when doing a block, make sure you mention what you are blocking against: movements/attacks/perception.
Just because the ghoul is blocking people from getting at the pen, it doesn't mean he's blocking people from slugging him in the face.