it is working well! a few thoughts...
- it is cool that you made your own suits but they look too similar. maybe standard card suits would be best
- the art styles is good but not consistent with pixel art in some places and clean art in others.
- i did not understand how to make best use of strategy other then always picking a face card or ace.
- maybe keep your hand and only draw 1 new card. also show all the cards the opponent has available. then you can be more strategic about card choice. it becomes a strategy deciding which card to play now vs save for later vs what the other player may use.
- the way scoring happens seems very complex and i was not able to follow it. it can be tempting to have complex scoring mechanics but often it a simple method is better. it also slows down progression of the game waiting for scoring to happen.
- music and sound effects are good!