Buttercups/leaves/seedheads (Help!)

Buttercups/leaves/seedheads (Help!)

Observation - Buttercups/leaves/seedheads (Help!) - UK and Ireland. Description: First photo is of Buttercups (creeping?) I think I took the second photo of leaves of/ near the same plant and the third I think maybe the seedheads of buttercups (marked by black arrow) but i am not sure if all these are of the buttercup area or I've mu

First photo is of Buttercups (creeping?) I think I took the second photo of leaves of/ near the same plant and the third I think maybe the seedheads of buttercups (marked by black arrow) but i am not sure if all these are of the buttercup area or I've muddled my photos beacause I'm not sure the leaves are quite the same. Any help would be welcome!