Wow, he put quite a bit of work into it, but it's gonna take a lot more. It's impressive what he's done so far tho. The Half Life 2 case mods looked a bit more realistic because they used simple motifs like rusted metal and canisters and switches which can be reproduced with many of the details while this guy is usually some very complicated motifs that is not easy to reproduce the details of. Thus such motifs are simplified by necessity and thus may not look at authentic or real. Also since he is basing a lot of the design and paint schemes off of the in game elements, it may not be as detailed as the real life elements that the half life 2 case mod emulated.