Pretty damn good! Especially for your first flash game, quite impressive. The Graphics were really good and the sound was nice as well.
There was only one thing that really bugged me about the game, the book of Exmortis.
On the cover you had an Upright normal pentagram, a symbol that means peace, that just seemed to clash for me, you could even out it all simply by inverting that pentagram like the others in the house.
One other annoyance was the things you had to click on, some of them were so dark that it was near impossible to notice them.
Other than that, quite a good game, and quite an impressive amount of skill and dedication put into it.