Hello
Anon I cleaned your mesh + add details where they are important. I have reduced the amount of polygons. I cleaned some topological problems, I improved the tail.
We will use the cleaned version. Now it needs more details like bracelets, necklace, maybe an other outfit, etc.
There were definitely too many polygons and not where it should have more poly. For instance her arms where a four edge circle extruded. While her finger had 6 edges circle extruded. This make no sense since the arm is more visible and bigger. I removed the ears and simplified the nose + some minor adjustments. Keep in mind this will be seen while racing at 150km/h in a glass tube with water deforming what you see outside. So you don't have to spend too much time on details.
The main topology is done. I want to congratulate you because it's a kind of difficult challenge to make a character. Even if I have done some modification you will be credited as the main author of this object.
Thanks.
In the other side I have made some progress with the jetliner. Now it flies with condensation trails. In game it looks very cool (but for the moment the aircraft seems popping out of nowhere). So this should be corrected.
Also I know currently they are red. It was done to see how it looks with color, and to make something visible for tests. A more regular withe will be used.