These are really fantastic - the whole lot of them! Great job!
If there is one area I hope you concentrate on in the future - it's perspective. Its a little wonky here and there. In this guys case, look at the line created by his 'air intakes' on his shoulders. Its parallel to the horizon line. So all the other perspective lines should converge somewhere along that line. If you draw an imaginary line through his knees and back into space, it points downward and doesn't meet the horizon line at all. You should be able to draw a line through his shoulders, elbows, hands, hips, knees and ankles and have them all converge in the exact same point on the horizon (assuming he's standing in a symmetrical pose). Does that make sense?
Didn't mean to get into a crit there, but these are really awesome, and I just want to see you take your work to the next level!
haha thats cool man no problems thats why were here to grow so in that regard thanks yea i do get what you mean mate and your rite it is of. sometimes i do take artistic libertys so show design in preliminary work and then adjust in finals and sometimes its stance and desgin but just dosent traslate. in an illustration tho those libertys are not taken. thanks for the feedback brother its always helpful.