Congrats on your first LD, and great game! I love how the game looks, that being said I think you know that it's sometimes hard to differentiate between walls and the floor, if you gave the floor a different color and texture it would help the players get around easier.
The lightning effect on the torch also looks great, a quick question here, if you don't collect torch fuel do you actually lose because everything is covered in darkness and you can't see anything? I waited a little bit and it didn't seem happen, but it would be cool.
The audio, although simplistic, creates a great retro feeling which fits the game.
The controls are easy to understand and are quite pleasant.
Sorry for the long post, it's just because I really liked your game and I think you have a lot of potential and you'll make some great games in the years to come, so good luck!