SpeedSolving Puzzles Community

IsThatA4x4
IsThatA4x4
I'm gonna try and guess what the cubes are but I can't recognise very well just like that:
2x2: Valk?
3x3: RS3M 2020
4x4: AoSu WRM or qiyi MP
5x5/6x6: MGC
7x7: Spark??
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