Frozen seedheads

Sometimes it's hard to choose between colour and monochrome. 
These are early morning winter shots with hoar frost on seedheads by the River Thames in Oxford, England.  
Does each image have a different emotional impact?

In the monochrome shot perhaps the soft focus gives an ethereal effect of eternal cold, whilst the colour background suggests emergent warmth about to make the frost 'melt, thaw and resolve itself into a dew'.