Tryinhard, your horns look OK to me. I assume that you want to do the traditional powder horn project. If that's the case, I commend to your study the excellent book
Recreating the 18th Century Powder Horn by Scott and Kathy Sibley. This book is available from track of the Wolf for about twenty dollars, and it's money well spent. here's a link
https://www.trackofthewolf.com/Categories/PartDetail.aspx/75/1/BOOK-R18CPH
if you decide that you must bend the horn, ignore the siren song of "boil the horn in water for xyz minutes and leave the form in overnight.." I can tell you that this simply doesn't work. Instead, you should get a 'fry daddy' or similar gadget and a gallon of veggie oil from the local supermarket. I heat my oil to about 375 degrees, and I immerse the horn for just a little bit - fifteen to twenty seconds. then I pull it out and see if it's getting soft.
Some thoughts on this:
first, use common sense safety precautions: wear long pants and a long sleeved shirt, and closed toes shoes. Although many oils are not very flammable, it's a good idea to have a fire extinguisher handy. children, over enthusiastic pets and other distractions should be elsewhere when you do this, and in the best interest of domestic tranquility, you want to do this out of doors (and be cognizant of the wind direction). Heavy leather gloves which are large enough so that you can snatch them off are essential.
additionally, you want to make sure that you have the hole drilled in the stopper end of the horn. this way, you're not forming a bubble when you dunk the butt end into the hot oil. a burp could splash the oil, which could become a very bad thing very quickly.
also: when you put the horn in the hot oil, watch the edges carefully. if you see bubbles begin to form, go ahead and pull the horn back out .. what you're seeing is the beginning of delamination.
good luck with your projects
(note the use of the plural … once you make your first horn, well, it's kind of hard to stop)