Charmander
Modeling time: 1h
Unwrap time: 1h
Texturing time: 30min
Polygons: 538
Vertices: 557
Charmeleon
Modeling time: 1h
Unwrap time: 1h
Texturing time: 30min
Polygons: 946
Vertices: 985
Charizard
Modeling time: 2h
Unwrap time: 1,30h
Texturing time: 30min
Polygons: 1,577
Vertices: 1,660
And a slightly altered version of the collage to Sketchfab.