Walkthrough!

Here are the steps to follow to easily get the Good End without any pesky bugs appearing!

1. Examine Reflection in the Fountain
2. Explore the Garden 
3. Take the Red Rose,  go back to the Mansion entrance
4. Pick up the Rusty Pail, step back 
5. Enter the Mansion
6. Examine the Portrait, take the Necklace, step back, step away
7. Enter the Red Door, present the rose, present the necklace to Wrenn
8. Fill the pail with Wrenn's blood, then return to the Garden and take the Blue Rose
9. Take the Northwest door, take the music box, step away
10. Approach the door, present the Blue Rose, Offer the Full Bucket to Larke
11. Swap to a Yellow Rose in the Garden, go to the Northeast door and present the Yellow Rose
12. Play the music box for Finch, return to the Foyer
13. Enter the North door, enter Paradise,  Accept him

Congrats!(?)