Which egg is fertile?

[tessie2max]

Learning to tell. Looks like one is and one not. Thanks for help.r

 

[tessie2max]

 

[Wasson6Pack]

I think it looks like the top one is fertile. See the white dot? It will be the center of a bullseye with white rims around it if it's fertile.

 

[aart]

Top one may be fertile, tho no well defined bullseye.
Bottom one I can't even see the blastocell.

Hard to take good, clear pics of yolks,
to position any glare away from blastocell and have it in focus,
keep practicing.