Day 1, which was the Sunday, was nice and quiet.
Day 2, which was the Monday, was crazy. Mainland Chinese was on holidays. We didn't experience queue cutting but there was a bit of push and shove and relatively long lines. The lines weren't as long as at WDW or DLR with the longest wait around 50 minutes or so; but with the no respect of personal space, we didn't queue up for a lot of them.
Your pics show a very busy park!