Congratulations on submitting your first GDevelop game! I love the halloween theme and it is a pretty chill concept and easy to get into.
A little bit of feedback from me:
Maybe change the leaderboard to go back to the start instead of the gameover screen, so that you don't have to reload the game to play again.
Maybe also add some particle effects to the pumpkin tab to give them an explosive feel, the sound effect is nice though :)