It is really hard to get orange eyes naturally. We have known that eye color is a polygenic phenotypic character determined by 2 distinct factors: the pigmentation of the eye's iris and the light in the stroma of the iris. All these based on genes. If you really want to get orange eyes, you can wear colored contact lenses. This kind of contact lenses can offer any color you want to own. However, you must go to see a doctor and make sure that you are not allergic to contact lenses. Then you can wear them. By the way, please do not touch your eyes without hand-cleaning, or you may get eye infection.
The color of eyes is decided by geographic locations and most importantly, genes. Generally speaking, orange eyes are not possible, but anything could happen in this big big world, for strange cases occur from time to time. If you really want a pair of those eyes, I recommend circled contact lenses to you, which could give you that desired effect.