Created by Ankuran, the Pink Alstroemeria's emblem is an alstroemeria of no particular species with petals of powder pink and white and stamena of powder pink, white, and yellow. Five fesses of varying breadth run the length of the flag in the following colors: white, powder pink, white, yellow, and white. All of these elements are atop a field of powder pink. The flag was created for the Flag Design competition as part of Lusitaníadas/Lusitanian Games 2022.

Design, Elements, and Symbolism

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Design Process and Commentary
As the prompt required an original design with complete thematic freedom, I was immediately inspired to create a flag encapsulating my beloved Alstroemerian Commonwealths, where (as of this writing) I serve as Iwaku's minister of foreign affairs. Early on I decided on soft pink and white as the primary colors, with the addition of yellow coming much later. The original concept also included light green leaves, but this color and its associated elements were dropped from the final product both for aesthetic reasons and out of a desire to adhere to entry requirements: green, red, and blue were all mutually exclusive, and I was unsure if the powder pink -- itself a very light magenta -- would be counted as red.
The alstroemeria emblem came together relatively quickly, and the final product remains relatively unchanged from the original design. Most notably, the original design featured a number of stacked strokes which were omitted from the final product. The stylized geometric design of the emblem is meant to be evocative of a Japanese mon, a reference to the Japanese influence on the Commonwealths' culture and identity. The emblem -- and, by extension, the flag as a whole -- exhibits symmetry on only one axis in an attempt to both make it feel more organic and also to capture the Commonwealths' tendency to defy easy classification. Many alstroemeria were used as references for the design, and as such no specific species of alstroemeria is depicted in the flag.
As the emblem neared what would be its final iteration, different types, numbers, and breadths of fesses were tested, alongside different placements of the emblem (a past attempt at which can, as of this writing, be seen in the flag of Albrook). After conferring with the Commonwealths' community, I decided the large, central emblem was the most appropriate for a flag.
Throughout the process, the flag's proportions remained constant. From the beginning I knew I wanted the flag's proportions to be 1:φ, the same as the flag of real-world Togo, for its mathematical beauty and for the irony of choosing irrational proportions to represent a federation known, at least internally, for its outrageous delegates. At times this made precise alignment of certain elements difficult, and even in the final product alignments are slightly incorrect due to truncated decimal places. In either case, neither the fesses nor the emblem are perfectly center; as they're meant to represent the horizon, the fesses are aligned below the flag's horizontal axis with the emblem placed in such a way that the stamena become evocative of the rising sun.

Symbols and Meanings
In the language of flowers, the alstroemeria, also known as the Peruvian lily, represents the power of friendship and mutual bonds of support. Pink alstroemeria additionally represent celebration, playfulness, youth, and gentleness, while white alstroemeria represent purity, innocence, new life, reverence, respect, and healing. These elements are on display within this flag, but the alstroemeria emblem is also representative of the Alstroemerian Commonwealths as a whole, with each stamen representing one of the seven regions comprising the Commonwealths: The Glorious Nations of Iwaku, Eientei Gensokyo, Yggdrasil, Alstroemeria, Tsumonrin, Slavija, and Hetalia. Together the seven stamena represent a sun rising over the horizon on a new day. The fesses collectively depict the watery horizon the sun rises over, the rays reflecting upon its surface. The open petals represent the Commonwealths' open and inclusive nature, while the pink (beyond its use in flower language) additionally represents the Commonwealths' staunch and uncompromising pro-LGBT stance.

Links and Closing Words

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I would like to thank the jury -- Alentejo and Algarve, Jutsa, Pilipinas and Malaya, and Markanite -- for their consideration and the regions of Portugal, Europe, Forest, and 10000 Islands for hosting this competition.

A link to the .png versions of the flag (full-size, reduced, and Fibonacci spiral variants) can be found here (imgur).

SVG versions available upon request.