Overall I think it's very well made.
In general, nice work.
These comments are more "nit picky" than anything. I don't think there's any issue anywhere in the mark that immediately struck be as poor or needed fixing. I'd be pleased with myself if I created your mark.
I do think the application inside the circle just distracts from the mark in general and should be avoided where possible. The mark stands on its own just fine. No need for the encompassing shape.
I can't really comment on the colors. I think your choices are pleasing. Any color choice is more about you and your personality. It's rare to have a "wrong" color combinations in a personal mark. The blue/teals are nice and convey a somewhat "laidback" attitude, but the strength and simplicity of the icon itself still seems to convey a "professional" or "serious" mindset. At least to me.
I'm not a huge fan of the type "Meng Lin" - It's not bad in any way. It's simply uninteresting. Admittedly, I have a personal pet peeve regarding branding that's just an icon placed above a typeset font. If one is going to flex some creativity for the icon, the same care should be given to the type. I don't find much interest if I can choose a font from a type menu and match your logo font exactly. But again, I don't think type is bad in any way in your mark. it's simply not very memorable on its own.
The iconography is great. I would perhaps focus on construction at this point. Merely to refine everything. There seems to be some very minute discrepancies in widths and rounding. However, what I'm seeing may just be due to posting the raster format, and some distortion occurred due to that process. But... at this point I would reconstruct with precision in mind...
My only possible point of exploration would be in perhaps rounding the 4 sharp corners ever so slightly. Only a small % of the other rounding so they aren't 90° corners. This is merely a matter of preference, though. If you like the sharp corners then I wouldn't argue with you about them. I think it works either way. The slight rounding of those 4 corners should soften things just a hair as well as make the mark "feel" a bit more fluid overall. So, I'd use a circle that is 25% the size of the inner, smaller, circle in the grid.
Again, these are really minor things and I only mention them because you asked.