In any case I have lots of pictures. I deeply request that anyone ask questions in the comments so I can answer them there. That way when the next person goes "WTF is she talking about?" maybe the answer will be below.
PATTERN: I completely redrew the pattern on handy graph paper. Please keep in mind that this pattern was heavily influenced by another on deviant art (which of course I can't find now). However when I first tried that pattern I was so disgusted with the outcome that I made this one instead, so maybe it's a good thing I don't give them "credit" as I may actually be insulting them instead.
I have brief directions on the side, but you need the big version to really read them correctly. I've added them in their original size on their own page.
OK below is a general "how I fit together" sketch. If you're not a visual person then this will mean nothing to you.
Right, on to the other part....actually putting him all together.
I don't know why but I always start with his head. Take all his head fins and bits and get them lined up! Oh and I started always hand sewing his head. I hate taking all those turns with the machine.
A) All the pieces
B) Sew the jaw pieces to the side of the main head piece, you'll also sew the two front "nose" edges together of the jaw pieces.
C) Make sure the right side is out (so the seam in inside) and sew on the head fins. Just double check that when you turn them inside out the seams are in the right places.
D) Tadaa. A head. You'll sew one of the 5 little bumpy guys in the slit there.
OK set the head aside.
Wings: 1 - lay two of the wing cuts outs lined up on each other. Sew the outline leaving the indicated space open (see pattern). 2 - Turn inside out. Start sewing the "design" lines for the wing detail.
3 - Tadaa. 4 - Repeat. Follow the same steps for the other fins (side and tail).
Legs: 1 - Make sure you have all the bits. Put the bumpy bit in the two leg pieces. 2 - Sew the two leg pieces together leaving the top and bottom open. 3 - Put in the toe bits and (hand) sew it on (make sure you keep track of which side you sew them to, you don't want 4 left feet!) then sew the circular pad to the bottom. 4 - Repeat until Tadaa.
The "Fun" Part: 1,2,3 - Take the two back pieces and place the back fin and two wings in between them. Make sure the back fin is also between the wings. Sew it together all the way down the tail.
4 - lay all the other pieces out to get a sense of placement for the legs. Decide where the legs will go. 5 - cut out small half moons on the "back" section.
6 - Line up the "belly" piece and duplicate the cuts.
Carefully sew the "belly" to the "back" making sure to leave the small leg holes open. Don't forget to add the side fins just behind the back leg holes (or wherever you thought they looked best) while you sew the belly to the back. Leave the end of the tail open on both sides by about 2 inches.
Stuff stuff stuff! Stuff the legs first and hand sew them to the body (this way you can be sure they will all point the right way). Stuff the belly! Hand sew the tail fin to the appropriate side and sew everything closed on that end (also makes it easier to add extra stuffing from this side if needed). Now attach the head.
Getting the head on right is the most tricky part. I start by lining up the under jaw piece with the length of the original "belly" piece. From there you'll notice that you have too much left on the head and not enough to attach it to on the back. So here's what I do: I stuff the head and all the little fins, then I hand sew the edges of the fins together down the side until about halfway. That probably made no sense.
OK I'm just going to zipper that tent closed!
Then when it looks less like a tent I'm going to sew what's left straight to the neck joining. (OK I'm actually just squishing the piece together so you get the idea here.)
Don't forget to cut out some eyes. Again, I sew eyes on LAST because that's when they come alive! (Don't ask.) I use yellow fleece and some black scraps left over.
Honestly there is no "right way" to do any of this. I'm not even convinced this is a "good way" to do it, but it works for me. You don't see the hand sewn seam for the neck much (if at all really) so just do whatever works for you. You wanna sew everything on the machine? Go for it. Wanna go it all by hand? Hell yeah. You wanna make him out of purple fleece? Why not! I plan to make two more. One a light grey and one white, just so I can have an ombre Nightfury set. Legendary.
Also don't sell the patten or anything obnoxious like that. This is for fun and for private use only. Oh and give me credit where credit is due, it's just polite.