I'm not a Esenthel user but personally I think it has room for improvement, this is my opinion/suggestions:
IMO Titan is a generic name, Esenthel is not perfect, is hard to pronounce (at lest for me) paints the engine as a RPG focused one but as one good feature, is very unique, Titan is so common, that is already used by another engine.
https://www.moddb.com/engines/titan-engine
Search for Esenthel on MODDB and only yours will show up.
Also the logo IMO compared to the original more organic, friendly one, has a very aggressive look to it and immediately reminded me of a diamond, is that the intention? Search for diamond logo on google and you will see what i mean.
But If you really like it, use it but imo, you can keep the logo essence but give some roundness to it, remove those sharp points.
something like this
https://external-content.duckduckgo.com/...f=1&nofb=1
look how those wings don't end on sharp points.
About the colors, imo using colors on a logo will diminish the amount of background colors it will work on, so you need to test that very well.
Also see how small you need to make it, without the logo fusing together and those breaks/spaces in the image and fonts totally vanish.
Sorry if this sounds too critical and perhaps not what you wanted to hear, I'm just being honest and trying to help, but you do what you want to do, just my two cents, also sorry for any gramma mistakes, English, is not my main language, cheers.