The angle is beautiful! I think that with this much light you could get all the flowers in the compo sharp (use a smaller aperture). Did you use a polarizer? If not, it might help to cut down some of the glare on the petals, and intensify the colours. And yet another nitpick (don't kill me!), the compo, it might be worth it to make sure no stems without flowers are included in your view (you can bend the flowers out of the frame for this purpose, or find a different group). Something else that might help, this looks like it was made at high light time - it helps to make flower shots early or late in the day, or ... not on a so bright sunny day, but a bright overcast day instead (although you wouldn't have the blue sky then). Anyway. Sorry about the long comment.
Great POV and the sky works beautifully - I don't mind the harsh lighting but I would have perhaps edited to exploit it a little by using curves to darken some of the darker mid-tones.
I see your focus on the foremost tulip & it is beautiful- light may be a bit harsh which you could fix with the shadow/highlight adjustment in photoshop (amazing tool )! Gorgeous contrasting colors !!!
I like the point of view of these tulips. The lighting seems a bit harsh washing out the color a little. A translucent fabric screen would probably have been useful here. The dark blue sky makes a nice backdrop.