The first one, a very cheerful piece of pure music, should be an adaptation of Chihiro Yonekura's very quiet YOU

The second one, Snow, Silence, and Swallowing in Chihara Miri Kaoru, Nagato the Great~

The third one is probably the final ghost girl from Touhou Fantasy Town Touhou Suruko

You should know it if you look at Louloudu Niang and Kugou< /p>

Please adopt if you are satisfied, thank you