I'm trying to understand your reasoning behind having the main game be so slow paced, uneventful - yet a lot of descriptions when clicking around. I understand this is a point and click, but let's take the tree for examples - climbing on bench for star, wishing star, snail under the tree, the tree is dead. And nothing of value about it. You don't get to actually search for things in the main gameplay, you only collect rewards from being forced to help the npc's in the drawings.
If this game has been created as an art piece, rather than a game - it all makes sense. It makes sense how Little Lucy is drawing their escapism fantasies and how even if they keep wishing for something magical to happen, just like the tree is dead with the wishing star on it, so have her hopes whilst being in the orphanage.
Now unto more objective measures:
the game has a very slow pace. It could be more dynamic. The audio presence in this game is done well, the mechanics are basic (not much you can do about a point and click game). Even though you've chosen a grim aesthetic for lucy's reality, it is too much in contrast with the drawings. The idea behind it was good, but you need to work on the implementation of it.