I've missed San-Marino completely, but hopefully someone will cover it from our Russian team.
Belgium was awful. Singer looks completely off. It sounds good but makes no impression at all.
Watching Azerbaijan from screen I think it is perfect. However, everyone surrounding me claim to feel headache after it. Three winged angels and the lead angel wings are spreading wide. A lot of smoke and pyros, sometimes too much and out of place. Sound here on screen is bad, so I can not speak about vocal.