UPDATE: I am now making all the flags for the mod. Oh God. So many...
A few comments based on general design more then anything else:
- Albania communist and democratic looks too alike. I would remove the skenderbeg crown from the democratic one and give a full yellow star to the communist one instead of the voided one.
- Basque fascist: if you want something simpler for it, you could use the stylized "E" used by the basque militia during the civil war instead of that COA.
- canada communist: it seems odd as that it would be used by communists it is basically a colonial flag (not just the red ensign itself but due to the presence of the union flag in canton). Maybe OTL's canadian flag with the maple leaf replaced with the CCP logo. No problem with the fascist but you might be interested to know that OTL the Canadian Unity Party used a similar flag with a red flame instead.
- Catalonia fascist: some left-wing catalonian republicans might have an issue with that one considering they were the one using it. Personally I would go with a normal catalonia flag defaced with a sun cross.
- Czech democratic: if you want it to be different then the czechoslovak one, you could use a bohemian one defaced with the czech arms.
- France Fascist: you could adopt the flag of the PPF instead to make it stand out more. It was a white saltire with alternating red and blue quarters and a double-headed axe in the middle.
- Friesland: For communist you could use the flag of the Interfrisian Council defaced with a red star.
- Good spain: not sure what that means in this context but so that it is different then the democratic version, maybe use a red star instead of the COA ? as for the fascist one, I would recommand putting the fasces (at least I assume thats what it is, its hard to make out) horizontally to help visibility
- Greece: you might want to make at least the democratic one based on the one with stripes.
- Holland: I assume this is the netherland and not just the holland province if so, OTL the WW2 equivalent to the SS used the so-called wolf hook on various element of regalia.
- Italy democratic: maybe either keep it plain or use the repubublican COA instead ?
- Luxembourg fascist: you could draw inspiration from the COA and have a blue/white stripes field and a red cross instead.
- North Ireland Communist: due to the OTL design, I feel like a red fist in a yellow star on a red field would make sense.
- North Ireland Fascist: a group of irish fascist during the spanish civil war used a red saltire on pale blue. You could either use that or the flag of Ulster on a pale blue field.
- Communist Poland: Maybe a red with with a white eagle under a red star fimibriated white ?
- Fascist Poland: You could use instead the flag of the real-world Oboz Narodowo Radykalny-Falanga that existed in the 1930s: a green flag with a highly stylized white arm holding a sword
- Communist republic of Salo: considering a communist version of it would be going all the way around the political spectrum, a red flag type would be appropriate here in my mind.
- democratic republic of salo: maybe have the eagle with wings folded and without the fasces (or holding 2 laurel branches)
- Democratic Slovakia: I think you should keep OTL flag.
- Fascist Slovakia: the Hlinka guard would probably work better: blue double cross on a white circle on a red field.
- Fascist Switzerland: Their was a swiss fascist party in the 30s OTL called the National front. it used a white cross throught on red (a reversed english flag in other words) with or without the image of a spiked mace on it.
- communist UK: just like the canadian flag, the use of a red ensign just makes it look like a colonial flag. Maybe in this case remove the union flag altogether or place a communist emblem in the middle of a union flag. Another option is to use something based on the emblem of the british communist party, a stylised dove and hammer.
- Fascist USA: The KKK emblem would be simpler to see and make sense in context.
- Fascist Wales: while I can see that many people would think of a black flag as evil, the Saint-David flag to me doesn't really have any such connotation. a simple alternative could be a red celtic cross fimibriated white on a green field.