Here is the full list of all 18 Cross-Stitch Puzzle achievements.
Embroider all half patterns
Unlock all the colors of the threads
Embroider all African patterns
Embroider all North American patterns
Embroider all Asian patterns
Embroider all Slavonic patterns
Unlock 7 colors of threads
Complete the 1st level in all modes
Finish the picture of half three
Finish the other diagonal half
Embroider 10 000 crosses
Embroider 1000 crosses
Embroider your picture in the free mode
Finish the other half
Embroider a million crosses
Embroider all quarter patterns diagonally
Embroider all the patterns three quarters
Embroider all the patterns in the game