Colored cat belongs to @SpitfiresOnIce on here and on dA
Ah thank you! I was'nt expecting this kind of feedback, that was a pleasent surprise
And yeah, i'd love to see the redlines, if it isent too much trouble for you
Okay I got my friend to help me with the redline and they even made their own version.
I tried for more realism. I'm not comfortable enough with cats to easily change styles, so I stuck with realistic to show what I meant by head structure.
My friend did one closer to your style, but with some structure problems fixed.
In any case, starting with a circle and cross (for placement of features) can be a good start for head structure. I also suggest referencing off of photographs (if you don't have a pet cat to draw). You don't need to copy it perfectly, but it helps to learn what cats look like so you can stylize them.
Here's the ref I used for the cat on the right
Link
Overfix8
Appealing color choices here. They've got a very soft and relaxed feel to them. I like the strokes on the tabby's (?) fur pattern.
Their head structure could be improved. For the white one their left eye needs to be pushed back more, it'd most likely be behind the hair. The other's head needs to have their head less-long and their muzzle pushed down/made smaller. Cat muzzles don't actually take up much space on their heads.
Do you want me to send a redline to help show you what I mean?