Dude, I think it looks really good, it's gonna sit a little wobbley until the foam is put in, and your not done using the spot putty yet anyway.
Remember, your not going for Boba or Jango bucket, this is custom, lumps and bumps also come with the work Mando's do, think of any imperfections as narrow DARING escapes of a Mando out numbered and out of ammo... HAND TO HAND SHEB KICKIN!