In terms of looking and playing like an old Adventure game this was spot on. Some of the older games had their own problems though which are here as well. Having the space bar to move faster was a good idea and helped with some of it. However the interaction was slow and frustrating. I read some of the earlier comments and saw that you already know so I'll leave off here.
In terms of gameplay it was a lot better than some of the bad old adventure games with nonsensical solutions. It wasn't perfect though. I got stuck trying to a get a root of evil for quite a while.
For other players, here's a tip. You do not use the axe to get the root.
Music was good, and fit the mood well. The graphics were also pretty good and really captured the old style you were shooting for.
I wish the game was a bit longer. I don't want to give anything away, but the solution to the boss, while it made sense and was good from a storytelling perspective, made me wish for something more.
Also, having a character suddenly curse near the end surprised me. I'm not offended, but I know I probably won't be introducing this game to any younger members of my family because of it, which is a shame, because these kind of adventure games are exactly the kind of thing I'd love to share.
Overall, this is pretty good. If you improved the interaction a little bit I'd give it 4.5/5, and if it had a bit more material as well then I'd give it 5/5.
For now though 4/5. I'll be looking forward to your next work.
Thanks for the game.