Blue and pink can go together nicely, but I just don't think the Alpine livery is very cohesive. It just looks like random pink sections added to the car, instead of a styled design. The distinctive Tricolore motif of the 2021 car is lost, and is now apologetically small on the sharkfin.
It looks like it was designed by committee where this sponsor wanted this, that sponsor wanted that... E.g., Castrol didn't want a pink background on the rear wing endplate so a stripe of blue was added there, MAPFRE wanted a red background, BWT wanted a pink background on the sidepods etc. Which is almost certainly how it was actually 'designed'!
I don't think there is a debate, everyone knows Alonso is an ace and always provides maximum attack. I think Red Bull erred by selecting Perez (well dithering between Perez and Albon in fact) instead of confirming Alonso before Alonso had the chance to sign for Renault Sport. But that is what it is, RBR's misstep is Alpine's gain.