Hard to say from pic. But look ok. Like I said previously, although I found the problem to be cassette but I can't see any obvious bent or damages. Just to confirm, when you start pedaling the clunking noise happen and your pedal skipped abit right?
I just recalled how I suspect could be the cassette: The chain skipping happened somewhere at the smaller cogs. When I shifted to bigger cogs everything was smooth. To make the troubleshooting more difficult, the skipping occurred only when I was pedaling. If dismount and use hand to move the pedal no skipping. Maybe you can try too, play around with different speed (front and rear) and see which caused the noise.