Thanks for that COG, Hopeguly i can answer some of your questions.
1:The DA sholder pad is on the base as im basing this army around the idea of being reinforcements that have been \"drop-podded\" in to help their comrads which are already in battle, meaning there would be parts of dead marines here and there(Hope this makes sense)
2:It would be great to know what you think looks weird about the white, as you said it may be that it is a bit messy around the edges.
Hope this answers your questions,
SirJD