I've been learning grooming on Houdini since a year or so. I remember being so scared of using this software at first but today I use it proeficiently all day and I love it! I did this bunny on my spare time with a Houdini Apprentice licence (so saddly I'm limited to 1280x720 resolution in my render T-T). I followed some of the free tutorials on SideFX, especially the Barry Bacon one from Gabriela Salmeron. She's really great! I didn't model the rabbit, it's a free download asset on SideFX library, it already had fur and an animation but I redid the full groom and hair shader. All in Houdini.
I'm open to any advice!