hey mate...
i wouldn't comment on this, but i own one of these mondeos and constructive critisism is always good and you said you like tutorials... sooo...
i have a few pointers and such...regarding this car and your further projects.
i feel, like the front spoiler is too big in its heigth for it to be subtle, so i kinda made a chop of your chop...i dont mean to be cocky or disrespectful, but i see in you some promise so i try to help.
you probably lowered the car and choose some rims and found a nice front spoiler...nice...now when you probably started to fit the spoiler you saw, that it was too small, so you modified it a bit...made it taller...
you shouldn't do that...in a car there are always ways to make it lower- thus make the (front) spoiler look better.
first...let me post a picture...
the red part seems like it has been modified
the green part is where you could have made some more lowering
the cyan part is where AFTER the green part lowering...you could have lifted the rims and arches a bit higher...thus making the car a bit lower
the yellow part is a part of the rim...if the rim is flat you can shift the insides of the rim to the side (in this case left) and repaint the rim arch...making it look not so flat.
I made a re-chop of your work to show you how drastic these sort of changes work on the car[
Hope this helps bud!