Hi, first off, great car to model, it’s got some really interesting details, and is certainly one of the more stranger looking F1 cars around. Second it’s those crits!
The front wing’s going to need some refining once the basic dimensions of your model are sorted as others have said.
Second, the sidepod air intakes are much larger than how you’ve modelled. It can be tricky to make them out on the McLaren with all that black paint they insist on spraying the car with.
Anyway, I think some pictures of the actual car would be more useful than me nitpicking your model!
Here’s a link to a gallery of pictures from a test at Silverstone - have a good look through them, some are obscured by spray, but there’s a good many where the shape of the car can be analysed.
And dudders, I’m green with envy here! What a trip that must’ve been!