Look at the corrections.
1)Ground plane under IR2104.Is it ok?
2)C14 is straighten now.

The main reason,why I am not replacing the Jumper in the feedback path because I want to put R5 as close possible to R6 & C4 because together they are forming the voltage divider & the LPF.The more I move R5 from the input header,the more it will be susceptible to noise!!
Also I edited the Power path of the Arduino header & removed another jumper(red wire).

 

Yes, looks good.

Cheers
Mike