the second image if you have mmd dl but it is not free, if you are interested I leave the link where you can buy
I forgot to tell you that you can download the trial version of the model, it is in the link that happens to you.
that if you want the full version you have to buy it, in link the price is indicated.
of the first image, after searching are MMD models of FGO, the models of the image are modified.
here the link of the originals:
https://media.discordapp.net/attachments/395386307049816064/567823187123... and you know if you have dl
the first model is not released. so you can't download.
If you still looking for the models i found the first one while looking on iwara i haven't check it yet because my pc broke so i dont know there any problems with it
And the second one can be found herehttps://mmda.booru.org/index.php?page=post&s=view&id=1712