i think the design looked good
but why would bursters look like that?
well, if you assume queen takes host characteristics (i like to think so) and trasnmits them to facehuggers (i also like to think so) then you got an easy explanation (would explain much stuff, all alien diferences in all movies can be explained based on this queen dna thing, i posted before about it....)
you can think they could change colour to hide better, but doesnt make sense sicne in previosu movies that didnt happen.....