During playing lucky dragon games I noticed pattern- depending on which field dragon stands, it will give the reward “assigned” to it. So far I can say that:
Purple-middle field (only one in the game) - you will get Wind-up key
Red field - Box full of decorations which can change into Embroided box ( new Green, blue etc wallpapers) or Luminus box which can change new Green, blue etc carpets
Yellow- balloons box with 25th anniversary balloons (different colours)
Are there other rewards? I am mainly interested in purple field rewards- if there is anything more which I can get:)