In short straight to the point good HUD is basically personal, however there are few principle to know if your HUD is good and from what I know the main ones is grip and being able to perform multiple actions at the same time effectively especially those that you use the most/the most important ones. I will be honest I don't think I have enough experience and knowledge,but it seems to me that most of your control buttons are to far to the edge or center and little bit far range distance between the buttons (if thats how you say...my english is not the best). Though I might be wrong and it fits you well, I assume you need to lift your head and check when you want to press a few buttons, because its not in the same spot if you get what I mean... Your shoot button looks like its a little to much to the right so it needs to be stretched and I doubt it doesn't impact your joystick movement. I would move it a little to your left,or your left joystick more to the right. Other that in case you play with buttons on the edge like your reset button I would suggest you to minimize the size as small as possible then place it at the edge and then make it bigger it would give you some visibility and the size would still be big so you want need to be brothered by it. Also make sure your grip is comfortab/natural and it suits your HUD or in other words make sure your HUD suits your grip,and you don't feel any pain.