Although your ideas are rich, they are still not suitable for the actual logo design.

For example, you want to use the sail of a sailboat (I think you should mean the mast) to represent "1" and the seagull to represent "3".

In reality, the sizes of the two objects are too different. The positions of "1" and "3" in the class emblem should be the same as the class serial number. If you draw a big "1" and a small "3", the picture is not harmonious enough, which violates the concept of logo design.

So I improved your idea a little. The overall logo still takes the shape of a sailboat, with "mast" representing "1" and "sail" representing "3" to form your class name. The shape of waves under the sailboat symbolizes the famous sentence "One day, I will ride the wind and waves, and set my cloudy sail straight and bridge the deep, deep sea" in the poet Li Bai's Difficult Travel.

This is also my best wish to all of you. High school is one of the best and most important times in a person's life. Not only can you make many lifelong friends, but you can also get into an ideal university through your own efforts and decide your future life.

Finally, I wish all the students can ride the wind and waves like sailboats in logo and make great achievements!

I hope I can help you, please adopt it if you are satisfied!