I have a Canon 60D and recently bought a Canon zoom lens EF 24-70mm 2,8L USM. Bright colours seem to "glow" or are blurry when I take photos. It does not seem to be blurred because of movement or focus. I am a amateur and consider my self a beginner so this might be a easy question. I will show a photo with this "glow":
The first shot is front focussed and looks like it was shot wide open, so a lot of the main part of the image is out of focus, which can result in glowy halos around highlights.
However the effect is more extreme than I would expect, so my guess is the front element is dirty/greasy. It also looks quite a bit like spherical aberration to me which would indicate that there is something wrong with the lens, e.g. it has taken a knock and some elements are out of alignment.
Many lenses with faster apertures (F2.8 and faster) "glow" when used wide open, especially in bright light with high contrast. It is likely associated with spherical aberration and is typically reduced or completely gone when the aperture is closed a stop or two. Increased familiarity with the lens' behavior and characteristics will allow you to predict when the glow will and won't be present. You will then be able to select aperture to match your artistic intent.
The glow in your pictures is very mild, and I would expect it to be absent at F4. Since these pictures were taken outdoors in apparently good light, you should be able to stop down even further to F5.6 or F8, where lenses tend to have optimal sharpness. The subjects appear to be a considerable distance away, so there is no need to use wide apertures for background blur.
Consider reserving F2.8 for when you need the additional light gathering ability or when you have clear artistic reason for its use. Glow contributes to a lens' character.