Looks good, although your helmet seems to be kinda leaning to one side I could be wrong, as for your issue with the bondo I imagine any almost any automotive body filler will do, bondo is just the brand name.
Looks nice, and as for the tilt mine also has that. I believe you can tape it to where you want it and then resin. It should dry that way. You may need to do further research on this, as I am not completely sure, hope this helps.