Amazing
Most people have probably already said this, but the graphics were amazing; probably the best I've seen in a flash game. That and the music make a really mysterious and relaxing atmosphere.
In terms of gameplay there's a lot of improvements over the original; the last few items are easier to find thanks to the power ups, and there's no tedious boss fight. Still it does feel more like a remake than a sequel, the basic goals and mechanics of the game are the same. That's not really a bad thing though.
Can't really think of much improvements, but there were a few minor things;
I'd like to have a small version of the map on-screen at all times in the corner, because it's a bit annoying when it blocks the screen. Also having to press Escape to remove text is a bit awkward, could it not have been Enter instead?