The facial tubes could be connected on the neck, possibly around the ears, the like middle arms could be made larger or possibly removed entirely (I probably would just prefer if they were removed)
Though yeah that's it it just feels like the fluids may just be going nowhere with the tubes being so short, that's really my main point :P
I wouldn't mind making these changes. The little arms were mostly because they needed small hands to tinker with their own equipment for modification or repair reasons, or at least that was the idea. The tubes are more or less ways to get the fuel around the body because they really don't have intestines. Again, this was just the Idea I was going for lol. I can totally remove the arms and move the tube towards the neck. If you want em, Let me know! I was even thinking about drawing something animated for him because I personally really enjoy what I made. So you can look forward to that when I work on it.
https://drive.google.com/file/d/155HVRiVJxDXkuzKNndXmrAPnogTWTmiK/view?usp=sharing Here are some edits. Is this what you where thinking about?
Link
Kuro Dama
Oh god I love multiple eyes and tubes connected to a character... I may buy this with some changes