Yea i have to comment sigs (sorry i got messed up with that quon riddle about that woman got killed in train)
1.Well font is out of flow (very out) does not stick with rest of signature.
2.I can not see focal point (render) so whole sig flow is bad and no depth (check resorces for depth and flow)
3.I do not what is background .some brush ?
Things you should fix.
1.Use lighter colours (black is very bad for sigs,imo)
2.Fonts - stick them close to focals but not be more visable than focal ,so focal > fonts
2.Depth - i see you are trying t gain it but in bad way. Try duplication render couple times in 3,4 layers ,smudge them and change layer to maybe overlay,color dodge,multiply etc. Smudge from in out so you can get colours from render.
If you have questions be free to PM me