operation sequence/order
Step 1: Search the room.
There are no clues in the room, so we need to search every corner carefully. You find a table with a box on it in the room. You open the box, and there is a note in it, which says, "Look for that blue gem before you leave this room".
Step 2: Look for blue gems.
You start looking for a blue gem. You find a picture in the room. There is a flower in the picture with a hole in the middle. Guess the blue gem may be hidden in the cave. You find a key, open the photo frame, and you find a mechanical device in the hole. You need to enter a password to open it.
Step 3: crack the password
You start to crack the code, and you find that the flower in the painting has six petals, and each petal has a number. You tried to combine these figures, but it didn't work. You find a puzzle on the back of the painting, "I am an animal, my head is a letter, my tail is a number, what am I?" You start with a and end with 9. You combine this number with the number in the picture and finally crack the password.
Step 4: Find the blue gem.
You successfully opened the mechanism, and there was a box with blue gems in it. You pick up the gem and feel that its temperature is higher than the surrounding air. You know this is your only chance to leave this room. You put the jewels in the box on the table and the door slowly opened.
Concluding remarks
You finally managed to escape from this sky-blue room, and you felt extremely relaxed. The designer of this secret room is really cunning, but you managed to escape through your own efforts. You know, this experience makes you stronger and more confident.