Look underneath the Download button to see the description of each part. Part 1 is Omzy and yarLson textures, and Part 2 is satsuki textures. The satsuki textures are 3.3GB because of the IRO compression, but once they are downloaded, 7H will unpack them to the same size that's here. The last update for them in 7H was 12/26/2016, so it includes the latest version from here.
I guess the naming of Part 1 and Part 2 sounds like you need both, but you don't. If your download is freezing, then try not to download more than one mod at a time. There's nothing I can do about it. Google Drive and MEGA are the download hosts and are horrible when it comes to throttling and halting a huge amount of downloads at once. About the only thing left I could do is just separate each of the three options into their own download and label them Field Textures - Omzy, Field Textures - yarLrson, Field Textures - satsuki.