Need help with picture matching. AC2

[P459]

Okay, I´ve made it to Venice and im out to kill theese thieves who have betrayed Antonio.
I come across this odd mark, which turns out to be a computer file thingie. Rebecca opens it and... something happens. Then i have to find 5 pictures which have something in common. And I am so lost...
Can anyone help me?

[Crash_Plague]

I assume this is your first glyph.

The hint tells you to pick out the CORE similarities.

the word CORE is red and in all capitals, that word is your clue. Think about it, what has a core....


Try again, and if you really get stuck, come back,

In my honest opinion, these puzzles are A LOT more fun and rewarding when you sit down, look at them, and find the solution on your own.