1) construction animation looks cool
2) color scheme looks cool
3) Music sounds good
4) The explosion effects in this latest video look like they disappear too quickly, so that it looks a little glitchy almost, not sure if this is intentional or not though.
5) The selection menu for what to build looks like it could be a lot better with different tabs instead of a sideways scroll bar
Overall it looks good so far and I really like the visual effects!