I am not the most knowledgeable person, but I've been thinking about those hooves. They don't look at all right for donkey hooves. Donkey hooves should be much more upright. Does your farrier actually know how to trim donkey hooves, as opposed to horse hooves? The more I look at them, the more I think that he was trying to make them horse-shaped. I mean, if they were trimmed recently.
If they haven't been trimmed recently, then you need to get this animal on a more frequent trimming schedule. People think 6-8 weeks is fine, but you have to look at what the animal actually needs. In my case, my Pony's hooves grow so quickly that I'm on a 4-5 or even four-week schedule with him.
"Saddle fit -- it's a no brainer!"" - random person