Images in Obsidian: partial (?) solutions

I use the following markdown for images in Obsidian, which all work:

Foto1: 

<img src="file:///P:/Obsidian/BBZ/Schulisches/KuK/attachments/NN.png"></img>

Foto2: 

<img width="80px" src="file:///P:/Obsidian/BBZ/Schulisches/KuK/attachments/NN.png"></img>

Foto3: 

![[../../../../../BBZ/Schulisches/KuK/attachments/NN.png]]

Foto4: (geht **manchmal** nicht!)

![[NN.png]]

Foto5:

![[BBZ/Schulisches/KuK/attachments/NN.png]]
These markdown codes give me results:

Foto6:

![[BBZ/Schulisches/KuK/attachments/NN.png|100]]

Foto7: 

[[NN.png]]

Foto8:

![|100](NN.png)

Foto9:

[[NN.png|100]]

Foto10:

![](attachments/muell.jpg)

Are there any other possibilities with markdown to view images?