Spoiler I think your hidden draggable is jammed. It rattles, but won't release, and there's nothing else to move, unless I'm missing something.
@Don G Rowe Thank you for comment. Maybe you missed something. I tested the level and works perfectly. Spoiler: Hint The main draggable block will stuck unless you remove 2 hidden locks. Spoiler: Hint Some of draggable blocks can't be seen because it covered by shadow.
@meko Thank you for comment. I'm sorry for accidentally imitating your level because parodying original level maybe a common idea.
I just tried Meko's level 'Begin Again'. There is one similar thing.... Spoiler the placement of a lock is same Spoiler: Where is the lock? 1 hidden in the house but the placement of the house and the mechanism is different.
For the record I too found this level too similar to @meko's. Great minds think alike. I do like the second half of your puzzle. Unfortunately the part that is duplicated was Meko's entire puzzle and thus any level that reuses that step will fail to be original enough for me. A sad coincidence in this case.