This is a masterpiece itself. Not just the art and all that majestic stuff. As a fully caught up person to the manga and the anime, this is so heartwarming, pure nostalgia that made me tear up from the excitement, even the ending when you realize the STAWHATS are singling the first intro of the time skip episodes, it just hits—especially the moments when the straw hats or even perona pop here and there and you know why they are there and you see what they were doing back then, just made me giggle from excitement like a little child, like when I watched One Piece the first time—same smile.
Or even the Marineford arc moments, LUFFYS SCREAM. It made me tear up of course.
In conclusion, there's so much more put into this such as the emotions aka the puzzle pieces you see, but I think this is enough to show the iconic one-piece nostalgia feeling.