Join Date: May 2009
Location: Winnipeg, Manitoba, Canada
Typically, yes, they will get quite a bit coarser. Shay-la owns a TB/Clydesdale cross, and she hasn't grown an inch since she was about 2.5 years old (topped at 15.3hh) but she's certainly filled out a lot more.
The heads, no. Hence why so many horses tend to look ridiculous as yearlings - their heads don't tend to change shape much past 1-2 years old.
At 2 years old, I wouldn't expect to see her legs get much bigger in terms of bone density, or for her to get a whole lot longer. She'll gain inches and bulk, but that's about it. The skeleton itself is beginning to fuse as it will stay, in the knee and hock joints for example. A 2 year old is usually a pretty good indication of what a horse IS going to look like - she'll thicken up and lose that gangly appearance, but if she's not a whopping Draft now, she's not going to turn into one in the next couple of years.
However, if you're already leery about her size, then take caution. If she's already riding that line of acceptable to you for competition, then it may be best to take a pass.
I hope God tells her to smash her computer with a sledgehammer.