In the first photo you can barely see the black cap that covers the entire head and touches the eye, suggesting this is not a Great tit but perhaps a Marsh tit.
Был в смешанной стайке из пухляков и длиннохвостых синиц на мёртвой ели в смешанном лесу с большим количеством ели.
It was in a mixed flock of others Poecile montanus and Aegithalos caudatus on a dead Picea abies in a mixed forest with a lot of Picea abies.