To add onto this topic. I think you need to work on your portfolio more before you start trying to get clients. You have some strong images in there but you also have some that should clearly be cut, edited or be cropped.
The fact that the first thing I see on your website is text and I have I have to scroll down to see your photos is not ideal. The first thing someone should see when they hit a photographers website should be a picture that impresses them.
Your creative statement/mission statement does not land as well as you may think. With it being the first thing a visitor sees before they even see your work some people may move on before they even get to your work.
Part of it depends on what the background in the photo is. If it is a bright orange cone and the background is nothing but grass it would be easy to edit out. But if behind the cone is the horses leg, a fence, a wall with patterns on it then it is a lot more difficult.
Photoshop has a tool called content aware fill along with clone tools that can make it fairly easy to remove objects if the background is a solid color something repeating with no obvious patterns i.e. dirt, grass etc… With repeating patterns it can still be done but it depends on how complicated the pattern is as you want it to look seamless.
As for colors a bright orange cone, or get one of those green screen colored cones that are fluorescent green. Ideally it would be a solid color no stripes, no black edges etc… If it’s a solid unique color it is much easier to select and replace the object.