Combiner mode kinda make sense to me, in that the head of Sky Reign somewhat matches the Lion Helmet that Liokaiser had in G1. Then they have tried to match colours to where the Teal was on the original, and also a little black for poor old left out Jallguar.

But to me they placed the colours wrong in 2 spots.... the upper legs should be black (but i understand then Dezarus would have mismatched legs) and The head/helmet should be teal not black