This is a fun coloring page for children 3-4 years old, featuring a cheerful little dwarf with a red hat. He holds a pickaxe in his hand, while a snowy landscape stretches behind him. To bring out the details of the picture, I would suggest using light colors like yellow and blue for the snow, brown and green for the mountains, and yellow, orange, and red for the dwarf's hat and clothing. To colour the details of the dwarf's pickaxe, I'd use silver and gray accents. To give the picture an overall cheerful effect, I'd use warm colors - like pink, purple and orange - to shade the dwarf's face, hat and clothing. For a nice touch, the beard can be accented with purple and yellow highlights. The final result will be a stunning scene of a snow-covered mountain with a cute little dwarf, perfect for any child's bedroom!