So for the building puzzle you'll want it to look just like this. Flower ornament, red mushroom roof, purple thorn chimney, that very simple wall and the foundation with carrots holding it up. It answers all of their needs.

An alternative that will work is purple mushroom ornament instead of the flower. However the first build above with the flower will give you the achievement so make sure to at the very least to do it once.

Line it up just like that.

So you'll need 3 items:
Gems - received from trading the purple tailed mermaid (she wants a crab claw, obtained from fishing)
Shark's Tooth - obtained from fishing
Trident - take the carpenter gnome's saw near his work area and cut a branch off of a tree near the mushroom we did the first maze at. You'll automatically take it back to the carpenter gnome and get a trident

Line them up like this

1st item - Glowing Flower (Obtained next to the mermen's waterfall in the previous town)

2nd item - Golden Scale (Talk to the purple tailed mermaid. Get the dark berries obtained with a fishing rod from the tree in the starting area of the game near the first fairy. Give them to the merman with the orange star hat to get the king's scale, then wash it at the fishing spot.)

3rd item - Bellflower (Give the mirror from the gnome village to the middle fairy with the orange hair after looking at the big purple flowers then talking to her. Once she has the mirror go look at the big purple flowers again)

4th item - Cloud (look at the bird in the nest in the middle area, then talk to the gnome king, then use the small fish from fishing and give it to the bird, then talk to the king again)

Then you're ready for this minigame, which is up to your skill really

Line them up like this

The spriggan plucking flower pedals needs these answers:
Favorite color: Red
Answers for the tailor: "Err... Two arms only. Two common arms."
"Are you serious? No, the head would happen to be on the top you see..."

do this minigame quick
Tip: ignore what he's saying while you stir, he's just trying to make you forget how many seconds or miss the time he mentioned. He says nothing important while you stir.

To get more answers:
Butterfly information - painting gnome
Lake allergy information - purple tailed mermaid
Free Poem - orange tailed merman nearby
Flower information - bird in center area, then orange star hat merman

So now talk to the sad flower spriggan again, answer key:
"Red"
"Suggest the Merman's poem"
"Give her a red flower"
"For a dinner at my place"
"We'll talk about insects"

Line it up like this

Now you can kiss the princess. Thank you for using or checking out my guide. I've gone back and used it myself to make sure that it all works. None of it changes so the maze pictures, answers and everything will work for everyone the same.

If you like it or it helped you please rate it up so it can help more people! Little things like this are just my way of giving back to the community, have a wonderful day ^-^