Trouble fitting front wing

As you can see in the first photo, there is a big gap between the inner wing panel and the mud guard, which i can't believe is correct.

I had to do some repairs to the inner wing panel, as the corners with the holes were corroded away. You can see I have pop-rivetted a couple of repair patches, which might be causing an issue. I also had to do something similar to that bracket that goes across the inside of the inner wing (not in photo), to which the mud guard end fits. Both the inner wing and mud guard are originals from this series 3.

You can see a new steering-box cover with nice new green paint at the bottom of the second photo.

I can’t work out exactly where the mudguard goes in relation to the inner wing, as I presume there should not be such a big gap i.e. which bit of the mud guard goes wheel-side of the inner wing, and which bit(s) of the mud guard goes engine side of the inner wing (at the moment, i have ALL of the mud guard wheel-side)

If anyone has a relevant photo, that would be useful.

There should be a L shaped bracket on underside of wing that mudguard bolts to.
I used some rubber door stoppers in between mud guard and footwell to make a gap so the crud doesn’t get stuck there