Well, the color isn't very good. It seems too solid. I think the sig in itself needs a lot more work. The text isn't the best, but it's not the thing that drags down the sig. I really don't want to keep commenting on that, because you probably put quite a bit of effort in it. But I do suggest you start with something basic, like C4D, which should boost the look of most of your creations. I also suggest you check some tutorials.
C4D's are like brushes, though far more elaborate, as they are created in Cinema 4D. Just check it out, any website where you can find renders probably has some, or you could check at planetrenders. They have some.
The text is horrible, & the distort on Tifa face isn't good at all. Change your font, make it blend in with the tag so it won't look so out of place. And get rid of the distort and lower the opacity on the duplicated Tifa.
There's some good stuff going on here. It has some depth, and it looks like it follows the rule of thirds which is always good in my book. As for text... The best advice I can give you is to add it early on, and know where you're going with it. I know that may seem unorthodox but text is just one of those things that can make or break a sig, so you really have to at least know where you wanna go with it. I myself am by far not a master at text, but this advise helped me a lot. I'd say keep working on your basics, and experiment with them. It's always just about experimenting. =)
What do you suggest I fill the duplicated Tifa with? Otherwise it will just be open space. Alright thanks, Ill try putting the text early, so I can make it build on the text to make it fit more, thanks!
