your GUI needs to be more involved with the screen, think frames!
This doesn't mean you need to fill the entire edge with a bunch of stuff...
Just outline the area the elements will be.

As for the bars you have, they look rather flat.
Simple in a GUI is very important.
But taking example from many successful games, it should be stylized in some way.

Take the H3 HUD,

it looks brilliant because,
it makes use of a semi-transparent frame so it doesn't obstruct view
it is simple so the player does not get distracted by details
its clear and easy to read
subtle gradients give it an eye pleasing style

I know your game is probably not like halo, but regardless the points mentioned above are important on any GUI

Hope I helped,
Bombshell

Hello,

I am programming a dark dungeon based RPG and I am not 'feeling' my gui. I wanted to ask some people opinions with whats wrong and how I could design a better one.

Here it is:



I appreciate there is nothing on there at the moment, but just imagine lots of square buttons. I am sorry I am being a bit vague, but any ideas/opinions would be good.

p.s. Sorry if this is in the wrong place, I need help with design.

Without knowing what kind of information you'd be displaying, I'd keep the character/party info in a quarter top left or right of the screen.
I'd also combine the two bars to make it look like something, like a sword with one side being green (or red for health) and a lighter blue for mana/magic.
I think it would depend on the theme of your game and I'd make the bars shaped with something that's 1) symmetrical and 2) in-theme with your game or something like two flasks ... etc ...