I was able to play this one on my phone, which I enjoyed. It took me a couple of attempts to really understand what I was doing. But I eventually figured it out. 
Polish/Completeness
It is missing sound/music, which you noted. I'm not sure what the panic button was intended to do, or what the numbers on the clock represented. Finally, I found one of the capture rules to be buggy; I could capture on a diagonal when the rules stated I couldn't.
On the positive side, all the cards have visual assets, as well as the clock and button. I like the little onHover animation, as well as the highlighted card select. As well as the overall game loop worked.
I want to give this a 3.5. Unfortunatley I'm going to round down. An added title screen, or a nice background, or some more UI juice, and I would have loved to round up to 4.
3/5
Creativity
The game is essentially a match two. With a twist on capturing the face cards.
I really would have loved to see one more layer. On my play through, it seemed the optimal path was just to match until the deck ran out, and it made it easy to capture face cards, and seemed to give me the most points. If there was incentive and a strategy behind capturing face cards earlier, I feel like that would be more engaging.
3/5
Fun/Engagement
I played through this on my phone while having a coffee, and I was engaged and enjoyed it.
4/5
Overall
Ratings are subjective, and it's awesome that you completed this in a week and submitted!
Keep moving forward and making things. I feel like we've all been there blasting music and losing our minds... I remember one of my early projects, my character kept flying into space, and I COULD NOT figure out why, and it probably took me a week to realize I was setting both x and y to inputX.