- Old Trees. 2011. UK.
- Observation #13. 2009. Russia.
- Observation #11. 2013. UK.
- Observation #12. 2011. Russia.
- Observation #7. 2013. Germany.
- Observation #14. 2013. Germany.
- Observation #8. 2013. Germany.
- Observation #9. 2013. Germany.
- Observation #1. 2011. Italy.
- Observation #3. 2011. Italy.
- Observation #4. 2011. Italy.
- Observation #6. 2011. Montenegro.
- Observation 17. 2017. Russia.
- Observation #19. 2017. Russia.
- Observation #18. 2017. Russia.
- Observation #20. 2017. Poland.