See my comment to you for reference as below
1> The line is not clear between N and T
2> The color is a little bright, refer the background of topic.
3> From the logo, i don't know is NXT or NTX.
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Thank you very much, I got that..
Practically,  I‘m just a amateur designer
I will adopt your advice and change it for the better ,try my best...
thank you...