sup /po/, first time posting on this board, so sorry if i neglect

File: 20151126_014906[1].jpg (479KB, 2048x1152px) Image search: [Google]

479KB, 2048x1152px

sup /po/, first time posting on this board, so sorry if i neglect some unwritten rules or something.
here's the deal, i've been into prop making for quite some time, but only recently has pepakura been brought to my attention, so i thought i'd use it to make my latest project.
i wanted to make a t45 helmet to celebrate the release of fallout and so far i have made the basic paper model and resined it.
it's a bit wonky looking, but i'm pretty pleased for a first attempt.
now my question is, is there any specific brand or kind of filler that i should use to smooth it out? as you can see there are many fine detail lines on this model, and i fear that the fiberglass filler i usually use might be a little too rough for this