It's actually really hard to tell from your photos as your hair has been manipulated.
Can you take a photo of your hair after it's freshly washed and dried with nothing in it?
The fact that your hair doesn't like an oil is linked to it's porosity.
The fact that your hair doesn't break with relaxers is linked to the skill of the person who relaxed your hair and how often it was relaxed. There are some skilled hairdressers out there who don't burn people's heads or break their hair.