I never played Goldeneye, but this game is still incredible. The graphics style matches the Goldeneye style perfectly (as far as I can tell from the Karl Jobst speedrun videos of the game). And the sounds are also good. The gameplay felt good except the fact that there was no way to adjust mouse sensitivity, so I had to manually lower my DPI.
The twist at the end was really good, I a big fan of horror games and I really didn't see that coming. Great job!