Doesn't look very worst world right now.
But seriously, if you're going to try the silhouette effect, you should apply it for all sprites and mario/luigi, not just the foreground. Don't make it completely black either, but just really dark and with a few shades of color just like you did with the question blocks. In doubt, it's always good to watch real life videos (or at your own house if you have the privilege!) of sunsets for example so you can have a better idea on how the effect happens in real life.
- SnesLab Discord