Beautiful work!
Also for future knowledge, where do you purchase your leather from. I think It would be good for me to know should I ever want to do redo a certain sword of farbs 
I've purchased leather from many different sources. I've bought from Tandy before, but only when they're running a sale as they tend to overcharge. I find stuff on ebay from different leather shops.
Depending on what you're making, you generally want a piece of quality vegetable-tanned leather. The animal (often cow, calf, goat etc..) and the weight of the leather (sold in ounces to denote how thick the leather is) will be dependent on the specific item, be it a knife sheath, purse, shoe etc...
Vegetable tanned leather tools very well. If you're not going to tool the leather, then you can use other types, but you start to drift from historical accuracy when you use things like chrome-tanned leather. But even our veg-tan leather is not identical to the tannins used to tan (hence the word tan btw) the leather of the Middle Ages.
