She does look like shes got a bit of fat behind the shoulder and on her bum so yes, I suppose she could do with losing a bit. But she doesnt look too bad! Lots of long walks and hills needed!!!
You might have to watch her weight with the spring grass!!!!
Difficult to say without a rear shot or full side on shot. Probably between Good condition and fat. see condition scoring below -
Score 0 - Very Poor
Neck - marked upside down ewe neck, narrow and slack at base.
Back and ribs - skin tight over the rib cage and ribs are visible. Backbone (vertebrae spinous processes) sharp and easily seen.
Pelvis - angular, skin tight, very sunken rump with no fatty tissue detectable. Deep cavity under tail and either side of croup.
Score 1 - Poor
Neck - ewe neck, narrow and slack at base.
Back and ribs - ribs easily visible. Skin sunken either side of backbone. Spinous processes well defined.
Pelvis - Rump sunken, but skin supple. Pelvis and croup well-defined, no fatty tissue detectable. Deep depression under tail with poverty lines visible.
Score 2 - Moderate
Neck - narrow but firm.
Back and ribs - ribs just visible. Backbone well covered. Spinous processes not visible but easily felt.
Pelvis - rump flat either side of backbone. Croup well defined but some fatty tissue detectable. Slight cavity under tail.
Score 3 - Good
Neck - Firm but no crest, except in stallions.
Back and ribs - ribs just covered but easily felt. No gutter along back. Spinous processes covered but can
be felt.
Pelvis - covered by fat and rounded. No gutter. Pelvis easily felt and skin smooth and supple.
Score 4 - Fat
Neck - wide and firm, slight crest.
Back and ribs - ribs well covered and only felt on firm pressure. Gutter along backbone.
Pelvis - gutter to root of tail, pelvis covered by soft fat - felt only on firm pressure.
Score 5 - Very fat/obese
Neck - Very wide and firm with folds of fat, marked crest.
Back and ribs - ribs buried and cannot be felt.
Back broad and flat with deep gutter.
Pelvis - deep gutter to root of tail. Pelvis buried in fat and cannot be felt.
Skin stretched.
I think she's a bit too well for this time of year, if you aren't going to restrict her grazing when the spring lush comes, I think you will have problems. She does look gorgeous and well loved though!
I would be delighted if my horses came out of winter looking like that - but you do not want any more and if she is that well conditioned over winter she will need watching through spring with all that rich grass.
She looks like she is lacking a little muscle, but overall I would say the weight is fine and nothing to worry about. That may change if she gets too much grass.