i played it and i have some problems, i see that you are a beginner wich is fine! but i recomend the following
1. i recommend a little less enemy spam
2. i recommend having a longer level
3. i recommend making the level a bit more spacious, it feels claustorphobic
4. i recommend not mixing the dull lifeless colors that techno hill zones assets have, together with the many more colorfull and vibrant colors and stage assets of green flower
5. i recommend hiding the special stage token a little better instead of on the path where the player is supposed to go
and finally
6. i recommend making the directions a little clearer, you dont need a arrow pointing towards where the player needs to go but try to add subtle directors to let the player know where to go without it sticking out like a sore thumb
these were all the issues i had playing the level really, just add music next maybe