Brilliant! Fun and frustration in equal measure, just like the original. Really enjoyed how it initially replicated the original map before branching off into it's own. Lots of nice little touches, like the "2021" chest of drawers and the Atic Atac-styled keys and doors. I managed to escape via the upper exit on my second go, but that felt more like blind luck than canny gameplay.
Keep up the good work. You owe to it the 'wurlde to complete this one.