Frustrated with inability to do body work!

Had an opportunity to go out last night and do a little work. I decided to throw some primer on the front fenders just so I could see what the lines looked like. Here are some pics of each fender. Im not satisfied with the lines so Im going to try to get them a little straighter and a lttle more level. I can see that the holes I welded were still a little low.
Here is the passenger side, the one thing I see is each spot that has filler on it bleeds thru the primer. Its only one coat but is this normal?
DSCN2611.JPG DSCN2614.JPG DSCN2615.JPG DSCN2617.JPG

Now here is the drivers fender. same thing I can see a bleed thru of each spot that has been repaired. The lines are the only thing i was not happy with. I think the other holes that were welded and repaired are good.
DSCN2620.JPG DSCN2621.JPG
DSCN2624.JPG
Now I must tell you these fenders were only sanded with 80 grit so far. I guess now as I go forward I will need to go to a 180 grit. Maybe thats the reason that the repaired areas look the way they do? Also i wasnt real concerned about dirt so I didnt clean before I sprayed figuring I would need to sand anyway. I was just trying to get an idea about where I was going to be in the repair process.
After I was done I did a quick soft sand across the line area and found that I had low spots so I put a little more filler on the entire center line area and left it sit over night. I will try to get time tonight to address that area again and see if I can improve that. Let me know your thoughts and where you think I should go next to make this better.
Thanks Rod