I was able to find one of your images on the first page when I chose the filter "undiscovered content".

Some general tips around keywords is the first 10 keywords are most important with the first keyword being most important, second keyword slightly less important and so on downward. Your description is "A spread of snow goose windsocks and flyers". Maybe if you thinking "hunting" is an important keyword you could add it to your description to give that keyword more weight, e.g. "Snow goose hunting windsocks and flyers in a field" or something similar. Keywords that also appear in your description appear higher in the search results, but you don't want your description to be just a repetition of your keywords.
To find out more about titles and keywords, here is the link: https://helpx.adobe.com/stock/contributor/help/titles-and-keyword.html
Personally, I have gone back to some of my images that were hard to find and changed my description and the order of my keywords and it did make a difference.
I hope this helps.