The only rust patch I have is on the drivers door & it's hardly anything, I need tips on how to get rid of this!

Can anybody give me hints on how to get this rust patch off & how to use mesh etc etc..
Here are some photos of my standard Polo:
My splitter was grey and it had split in the middle and the previous owner used yellow glue to stick it together. My boyfriend reglued it with glue that goes clear, then resprayed the splitter black.
Before:

During:

After:

I would love to know what people think I should modify & what I should change. I was thinking pinstriping my grill? With red obviously.
Also, is my car Tornado Red? Haha.
















