Thanks for your comments and support to my work. I can only repeat > very encouraging and helpfull.
Hi TommyLee,
thanks for visiting my thread. I´m glad you like the image.
Hi Nomad,
thanks. I´m currently working on the ship. I´m looking forward to your opinion. 
newcenturydsn,
thank you very much for encouragement. The reflections are not developed so complicated as you might think. Hmm… how can I explain this precisely in a few words.
I took the painted buildings - flipped them - set the opacity on 40% - and very important: you have to erase all parts witch show the top of something (like roofs, etc.) - then I used Strg+T and corrected the perspective. It is useful to split some parts of objects wich are based on two different perspective angles to align them better to the bottom. finaly you have to repaint some little parts or you can also use the stamp. In terms of less time I didn´t do it very precisley - essential is just you make the obviously elements correct.
I hope you find this description useful and thank you for your interest.
conundrum
very good analysis. You mentioned all the things which devinetley need more attention. I will do my best to fix it all.
Thanks for comment.
Hi monsitj,
Wow!
Thank you for this comment. Your 3d work is amazing. You´ve got some incredible skills.
Fahrija