All kinds of postcards are welcome! But my favourites are:
+ space, astronomy, planets, spaceships, astronauts etc;
+ retro, vintage style;
+ green crocodiles;
+ art works (paintings, sculptures);
+ trains, railways..;
+ botanical illustrations;
+ something with my name :).
Thank you and happy Postcrossing!
Galina from St. - Petersburg, I received your postcard (thank you), but there is something wrong with number, so I can not register it.