I've already written about Higashiyama Hana Touro before. This year has been seventh time since the first one was held. It's getting more popular and more people come to Kyoto.
There were many lenterns along narrow streets. It looked completely different from day time.
Higashiyama Hana Touro means literally Higashiyama flower lentern. As its name, many Ikebana (arranged flower) were displayed.
Some temples or shrines were also decorated with lights during Hana Touro.
Middle of March is still cold in Kyoto, but I think it's worth visiting. Winter season is low season, so it is not very crawded everywhere.
Why don't you come to Kyoto during winter??