Thanks again for providing us some bases to begin with... :)
Nice resizes! :)
Though the outlines of the Mega Lopunny sprites need some QC... It's not really a problem with your resize but I think it's with how the original sprite was made... When scaled down, it seems to be not suitable for the new size...
Just saw your gallery, though I can't find a sprite that can be used here... Sorry...
Whoa! Thanks for finishing the sprite, and your back sprite is nice! Definitely the inaugural sprites...
Nice! I like your modifications... Definitely the inaugural sprites...
Mega Mewtwo Y back sprite can't be used... It looks Gen. 5-ish and is too small if cropped... Cosplay Pikachu back sprites can't be used also (Gen. 5-ish)... Sorry...
And please provide credits for the artists... I already saw that Cosplay Pikachu sheet somewhere before (I think from the XY Project of Smogon)...
New sprites posted in the OP are:
"Panthster"/"Fire Starter Final Evolution" (front sprite by Pokemon-Diamond, thedarkdragon11 and HeXeR; back sprite by HeXeR):
Turtonator (front sprite by Noscium, Versekr Dark and Kevin RDS; back sprite by Kevin RDS):
Just a recap with the Gen. 7 species and forms without featured sprites, we already have front sprites for "Entermaid", Stufful, Alolan Sandslash and Alolan Ninetales... "Robinroot" and the newly announced Crabrawler are the only ones without both front and back sprites, though I submitted an unfinished front sprite base for "Robinroot" (top head feather is missing; QC needed) recently...
EDIT: Edited the recap because of the news...