I probably should update on progress for boss sprites. I'm still busy with stuff in real life so things are moving slow but steady. Medusa is almost done as I am still working on a plausible slithering animation for her stationary position. So many videos I've watched on snakes to try and get it right.
Just...ignore my version of Richter. I was too lazy to make a sprite sheet from Optomon's version so threw mine in at the last second for a size comparison.

Started reworking on the 3rd form. Just messing around right now so stuff will change.
By the way Sephirous, that skull might be problematic. I mean, I can fit it in no problem but that 'brain' part on top of the legion thingy for Dracula's 2nd form relies on a different color palette. Might look odd but I'll fit it in this weekend and mess around with the color palette to see if its used by other sections within the game. If its not then I'll go ahead and finish up the 2nd form and get that stuff sent to you and let you do the color palette to how you want it and HOPEFULLY I'll get Medusa done within the week. Dracula's 3rd form will take me a bit because its literally slapped around in the CHR data so I'll have to finish up the sprite, fit it in and tweak it as I go along so it can fit appropriately unless if you know how to change the data there for the boss sprite to switch out with this one then I can get a mock up CHR data sent off to you.
Once that's all done I'll move back to the Richter sprites and get those done and sent off. Once that is all done I'll work on another boss that I figured that I'd try my hand at. Can't have a Castlevania game without a Rhondo of Blood/Dracula X boss.

For now, I'll keep watch on where you want to go with the 2nd form and see on what you want me to do with the 3rd form.