Great Puzzle Game with slight weaknesses

Hello, the game "Refraction" is a puzzle game in which light or laser beams of different colors must be passed through a room. Some of the beams must be bundled or split in order to obtain different colors (red and blue yield purple, green split gives blue and yellow, etc.). The difficulty is okay - The start will be very easy, but later levels have what it takes!

Why not five stars?
- The graphics are appalling "rigid". There are hardly effects or visual highlights. The whole thing is set up very convenient, too bad - There is a lot of potential!
- The controller is not ideal - Grade the redirecting light rays by means of mirrors and prisms split by is not solved very intuitive.
- The long-term motivation is missing something ... Unlike games such as "Tetris", "Puyo Pop" or even newer games like "Angry Birds" or "Cut the Rope" etc. I had personally never the "I want to do that now! " Feeling.

Many Greetings