When I saw the first pic, I had similar thoughts as loosie that the horse had extra weight. Not necessarily overweight but some extra. If I had to give a BSI(body score index), I would say he was a 6. That's not bad, but it could get worse. If the pic is of his winter weight, I absolutely see nothing wrong.
I don't think loosie was trying to downgrade you about the care you give. You did ask for help and advice.
To me, the second pic shows a healthier weight. I will admit that our horses are more like the first pic but we don't work them much. So I don't think you are a poor caregiver. If you were, you wouldn't be on here asking for help.
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