A little difficulty is never a problem for me... I grew up in the 80's when every game was near-impossible. It can get a bit frustrating, but a little challenge never hurt anybody.
I really couldn't get the closet to work for me though. I tried space, clicking, and getting all up on them, but I still "got got" every time.
This is your first solo game? It's pretty decent for a first effort! Good job, and good luck making more. I do hope you continue.