I love puzzle games and this hit almost all the right spots. One thing I couldn't figure out though was the horse painting. Not sure if it's a bug or just too tricky for me. I would love to know how to solve it. :)
It was really tricky, looked for it for more than 5 minutes. At the window, where the plank broke, there was a knife. Used it to cut the painting and find the third thingy. The game ends after going out and you sit on a bed in a cosmic like setting.