Suggestions for buttons + Gestures.
-Double Tapping Hero opens the equip screen and inventory allowing the player to easily access the players inventory and if he-she wants, makes it easier to equip.
-Holding a finger on the hero opens a wheel, kind of similar to this I suppose.

Removing the Green orb. Have the top right brown tab say Player, To the left, read Social and the bottom say System. If a Tab is selected, it will show a small menu dedicated to the selected menu item. (To save on the editing of graphics, using the buttons is also fine for navigating this menu as long as they are big enough to tap/touch.)
Example in Each Menu:
--<Social
-<Guild
-<Friends
-<Who's Online
-<etc.
--<Character
-<Skills
-<Inventory
-<Equip Screen
-<Hot Bar
-<etc.
--<System
-<Logout
-<Change Characters
-<etc.
-Making the HP bar slightly bigger
-Making the MP bar slightly bigger
-Making the Xp bar slightly bigger
-Make the minimap....Expandable I suppose? The small minimap is ok for now, but why not allowing players to double tap it to let it get bigger?
-Chat system is readable, chat-able. It works for me, so no suggestions yet.