Excellent
I loved the entire thing. I was looking forward to more symbolism, but the overall result was pretty good. I was enjoying the use of colour, and the ambience throughout, and I think you excecuted this well.
Also, anyone who thinks wasn't scary has to sit down and seriously consider where their mind is. Especially if they believe Saw 4 is scarier. Actually, no. That person's opinion is beyond redemption.
Keep up the excellent work, ignore the masses. You did wonderful! :D