need help with my c# project (bot) which uses OpenCvSharp for image recognition

I need help with my c# project which uses OpenCvSharp for image recognition. I am looking for an animal in a picture, and the animal is always surrounded by one of 6 shapes of the same size. Circle, oval, triangle etc. Animal recognition works very well, but often, For example, animal 1 with the shape of a circle is incorrectly recognized as animal 1 with the shape of an oval. I need help here with the further recognition of the shapes that are around the object. However, the image is quite small, which makes it even more difficult. I am therefore looking for a professional in image recognition who is very familiar with Opencvsharp. For someone who is very knowledgeable, this will not be much work

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