Appearance-wise I think they look excellent as always PK.

Labelling will be important though... the second flag would only date from early 1938 (when the eagle crest was introduced - previously they used the Republic crest on the 'Sangre y oro', either 'neat' as on the Republican flags, or adapted as on the 'Soria' regiment's one). As the 50 Division was only formed in May '38 it's fine as it is, but a label would help customers not use it for earlier units.
I believe
Regimiento de Infantería "León" n.º 2 was one of the units in Madrid in July 1936, so it would have been disbanded along with the other army units on 19th July... so could not be in the 50 Division in 1938, unless the Nationalists made a new one... or I am wrong, which is always possible when it comes to individual unit histories.
If you're using
La Guerra Civil Y Sus Banderas 1936 - 1939 by Juan Manuel Peña Lopez as your reference you can't really go wrong, if not you could do worse than get a copy... they go for around €20-30 online and while I doubt every single flag going is in there, I don't think many are missing!
