Josemwarrior got it, it's syosa
I knew it was Syosa. I was about to make a comment asking who's the artist (I couldn't figure it out) when I hovered over the image and the url below said "sosa.png"... So I figured it was Syosa. Then I decided to check if it was actually them. And then I forgot to make my comment.
I snooze, I lose.
Could you please mention the artist in your description.
That's pretty cool, I like the trapdoor!