A Tale of Two Spidermen(and one Supergirl, and a pirate)

Josh and his cousin Logan are both obsessed with Spiderman (and superheroes in general). Superhero play is very big in Josh's class at school. And Logan just turned 4, and had a Spiderman themed birthday party, with a live visit from Spiderman.
So with Halloween approaching, it was little surprise what they would want for costumes. Although Josh threw us a curveball as we shopped for the right costume, by saying he also wanted to be Batman. He has never been exposed to Batman here, so he must have picked that up at school. So we logged onto a Superhero costume website and let him pick between Batman and Spiderman, and he picked "Venom" Spiderman.
My sister valiantly attempted to lure Logan out of Spiderman with the very cute Supergirl costume, but she was unswayed. She will also be Spiderman, but the "good" one. She thinks it's "so cool" (her new favorite phrase) that she and Josh will both be Spiderman, and claims her good Spiderman will defeat Josh's bad Spiderman.
Luke is going to be a tiger (already had that costume from my friend Kimi), but for fun, and with a little help from Nana, he also got to dress up like a pirate. Aarg.
Josh:


Logan:


Luke: