Don't beat yourself up too much over your first bow. At least it shoots!
It's got what I call a square shape, which often happens with peoples first few bows.
By squre I mean it's a bit like three sides of a square, the grip being one side and the two tips being the other, with nearly all the bend a tmid limb.
An arc of a circle is a better shape to aim for, it's not perfect according to some theories, but it's a good target. It's easier to check for than other shapes too, just hold a CD up in front of the bow or a picture of it and you can move it back and forth to try see if it follows the curve.
If you want more draw length you need to get the inner limbs and outer limbs moving more, this will loose you some draw weight but gain draw length and also take some of the strain off the middle of the limbs.
Till ering is all about getting you eye attuned to seeing the curve and spotting problems before they get too obvious.
Good luck
Del