Samsung Galaxy Note 2, Cocoon Canvas+
i think your UI is too big.
your player and enemy HUD are take at least 25% of screen. you dont need to make that health bar too big since player will notice their health around the character.
the left bottom one looks like iteam placeholder and, for me, its looks too messy. if that condition of "box open", then instead making potion show around the box, make it like reverse dropdown menu( like this http://s33.postimg.org/bwc52fev3/review.jpg ) and make the thumbnail a lil bit bigger.
for the middle one, maybe thats the attack button, but why 3 ? its too big and the position is too weird, since its in the middle. usually button like attack or shoot is always place in bottom left or bottom right because is closest to player finger. maybe you can change that attack button to become more small and place it in side of screen.
hope this will help you <img src="{SMILIES_PATH}/icon_e_smile.gif" alt=":)" title="Smile">