Base Mesh at its Best, I've been doing this since 1998
Quad Parameterized, Light Resolution, Concentric Pole Alignment, Edge Loops, Fewest T junctions, Hybrid of Langer and Relaxed Skin Tension Lines, Guided Topology Looping
Unwrapped, Parametrized, Strategically Positioned, Adjustable Resolution - for cases where you need more - scale UVs 3x and you'll get into UDIMs. Relaxed
PolyGrouped into UV sections Concentrically split mouth and eye areas Centrally sliced for easy wrap control and projection, Concentric ears
About: I've been doing character modelling since 2001, got a little obsessed with Topology, as went as far as researching plastic surgery incisions, looking at pictures and constantly thinking of a better way to model topology. Researching cell alignment and reasons behind how cells grow.
In fact, some things which are listed as features of this base mesh won't even make sense to you. But they will, once you start cutting it and will get to the exact same result in 10 years time.