Here's some info:
1
Sold as "piri piri". Thin walls. Lots of seeds. Very pleasant kind of heat for my taste.
2
Sold as "cayenne". Bitter when eaten fresh. I'm not a fan of bitter. I'll dry those and see how they taste powdered.
5
This one is interesting. Delicate taste. Taste and smell similar to other brown pods I have tested.
Heat builds up very slowly. Gets serious after a while. Kind of ear-ringing kind of burn. Finishes on the tongue.
7
Delicate taste with a little fruity aftertaste. Building heat. Some bitterness for a moment.
Pleasant burn all over the mouth and tongue.
10
Habanero-like smell (quite strong) and heat. Visible oil deposits inside. Tongue burning and numbing burn.
11
Looks like something that I see in many supermarkets here in Poland. Usually I see them red. The red ones can be completely mild or surprise with a decent heat.
This one has no or very little heat, not much taste, wattery kind of.
23
Cherry Pepper? Testes "peppery". Has some heat. Full of seeds.