Signature making is a good skill, I hope one day you will fully expert it, some time ago I also wanted to learn some skills, and chose the creation of an ANN thread, I did some digging and found out good thread on Bitcointalk to get started but later I dropped the idea to some reasons. I also wanted to learn how to create a signature just like you, but did not spend time on it. Well talking about you, the link of orcaforum is not so helpful though, as I don't know about BTT but the tags that it has covered are not working here on ALTT and I can assume they will not even work on BTT as well.
And those tags are not the main things that we need to start making signatures, because those tags are forum based and I think you can only utilize them n that orcaforum only. Besides those BTT threads are good source so I suggest you to start from there. If you need any help you can contact Gladiatorcomeback I am not so sure but think he knows how to make one. (Not so sure but what's bad in asking him) Otherwise best of luck and please add more resources to this thread in future if you find any.