Arkam origins suit also looks fire buy it's a bit more bulky and less metallic compared to the arkam knight version. It has a more rubbery vibe to it. The design is superb though. In origins the deathstorke suit is also one of the best suits I have seen so far. Making these two will be really challenging especially the deathstroke one.
Good luck bro. I'll be waiting to see the results:)