Thank you both for your replies and advice. Bob, what you are saying definitely makes sense, and I will try to apply it in my next drawing. I have included a picture on this post of my latest drawing, which I did before reading your comment. I think the flow is better in this one, although I can see where you are right that it would look better if the vines were more uniform. Thank you for taking the time to explain to me.
Tim, I will have a look at hidepounders work, thank you for posting pictures of your work, it is lovely. I definitely have a long way to go before I am near as skilled as anyone on this forum. I hope I can gain as much from leatherworker.net as you have, I have been doing a lot of reading on the site already and am finding it very informative. I only have a basic Tandy tool set right now as I don't want to invest too much money into tools until I am sure I am going to continue with leather working, but I do eventually plan to upgrade to better tools.
Thanks again!