Hi nong,
Not sure whether i like
#121 or
#115 better. Will ultimately need to see how the angle works with the rest of the name. But looks good - I like the addition of the planet behind.
I haven't tried to work up your design yet - but will do so if I have a chance. In the meantime, could you try and squeeze/fade out the start of the tail a little bit more? Not sure how far it can be taken without messing with the effect - but the idea is to find the right balance between the G shape and the rocket exhaust.
Cheers