First Impression- Did I playing a another GalCiv2 by costing $99?
Well, at this point, maybe a little. Alpha.
Technology Graphic design- Totally "Copy and Paste" from GalCiv2. I am suggest Renew all technology animation and make every technology animation looks different even only upgrading its level. The Great Animation is let player understand through the animation without reading the description.
Lots of placeholders, specially in the art area for obvious reasons. Animation won't be as clear as text, imho. Not when dealing with mumbo jumbo technology.
Planet Map- Why is still 2D? This is unbelievable.. Even the building icon is fix 2D. Why no make it a little flash? Example: Design some plane fly around the starport. Basic Factory smoking. Technology building blinking. Advanced building show some Aura etc. Pls refer Warlock 2. Or maybe u guys plan to make it 3D in GalCiv5?
What's the problem? I'm ok getting a 2D map on my screen. Having to rotate the planets looking for the hex I need to build some lab with bonuses, doesn't seem nice to me. I haven't tried it tough. Eye candy flashy building icons... I don't care one way or the other. I care more about them being visually different, that includes better versions of each kind of improvement.
Higher Graphic requirement- This is so hard to believe the graphic performance was slow down without any improvement of game graphic design. I prefer playing GalCiv2 honestly because it never lag. i am using i7 and a amd 7700M hd graphic card currently.
Playing with a GForce 210 with drivers from 2012. It works fine. I have to play with everything down and windowed to 13xx to get some decent (to me) framerate but I play GalCivII in windowed with low settings anyway.
Speak to Leader- Currently i am not access yet but i hope the Leader should speak (Animation and Sound) and not showing me the boring text. Something like Talking Tom Cat.
So you want simspeak, right? Because all of them speaking english would be wrong even if Universal Translator.
I do agree that it could add to the atmosphere but "boring text" would make "boring speech" anyway. Next is getting a voice to read us the data in the data menus. 
Flagship collection- The graphic of collection was no difference at all, but the text only. sad!
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Build my own ship- Hopefully this time the ship accessories is link to the weapon technologies. It is so wired tat simple ship can do high damage, but pretty ship is weak! is just like i can make a cat to kill a tiger.
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Nebula cloud- Disgusting element when i zoom out the map.
So far, alpha.
Events- Please do more event, make it all different from: Story & Video Animation. At least make it 300 type of different event to let player can keep discover it, because tat is only element can make the boring strategy game interesting.
I like events as much as any fan of events but a boring strategy game would still be boring with events. Events can be used to spice up things but... to make a boring game fun?
I hope Galactic Civilization 3 can show player more creativity and better graphic design soon because this is my favorite game.
Beauty is in the eye of the beholder.