The appearance of your eye is within the normal range. The amount of veins is not excessive. The yellowish spots are usually sun damage. The about or 'red eyes' varies tremendously and in one person will change dramatically from time to time. Think about your eyes turning 'bloodshot' if you are crying, out in the wind, have allergies, around something irritating like smoke, have been drinking alcohol or using pot, etc. There are many commercial 'whiteners' for the eye like Murine, Visine, Lumify. If you have not had a complete medical eye exam by an Eye MD in the last 2 years get an appointment and go in to have them checked. Ask the technician not to put any eye drops in your eye till the Eye MD ophthalmologist looks at them because redness is one or your concerns.