There is a reason why the levels are easy and should not be made more difficult:
This levelset should be especially for players who haven't played this game that long.
My test persons said that this levelset already has a good difficulty. Since I usually consider my levels to be easy, it shouldn't be impossible for others...
For players who of course want it harder, I recommend and allow them to edit my levels.
![Smile :)](./images/smilies/icon_smile.png)