Feedback on homebrewed spells

Hey folks, I have 2 homebrewed spells that I would like some feedback:
- The first one is this one: https://www.dndbeyond.com/spells/3334660-dums-backup-aura. I was able to playtest it a little bit in my last campaign, but give me your thoughts
- Second one is just out of the oven: https://www.dndbeyond.com/spells/3336389-janoss-tiny-improvement. I did not test this one yet and I have some concerns here and there, would love to hear your ideas as well :)

As a player and DM my main focus is trying to keep the spell balanced and fun at the same time, and it is never easy with spells. But let me know what you think, any feedback is welcome.

They seem fine. I do have one very important question, though. Why does a spell with "improvement" in its name hinder creatures? That feels VERY backwards.

So, I tried to put part of my wizard personality on this, it is indeed (and intended) quite backwards, the idea is "I think you are annoying and I am improving this, so I am less annoyed", so in his perspective, someone that does not shut up is "improved" when they are hit by the Tongue Knot effect, for instance. I tried to put that with the first flavor sentence, but I agree it is a little bit misleading.

Ah. I see. Also, I noticed that the Asymmetric Limbs option gives a creature disadvantage on ALL attack rolls, including spell attacks. You might want to change that.

Nice, good catch, I will make it weapon attacks only, makes sense
edit: done, updated the spell version, ty.

 The first one is fine power-wise. I'd argue it might be a touch underpowered for a 4th level spell. My only critique with it is that the whole "aura" thing feels a little bit off since the aura itself doesn't do anything, it is just a way to mark the range of the spell, the spell could easily be rephrased to remove all reference to the Aura and still function exactly the same.

The second one while very cool - I love, love, love the flavour!!!!! - I think is much too powerful for a 3rd level spell, given the diversity of things it can do it feels most similar to the Eye Bite spell (which sadly I can't link here for you) which is a much higher level spell. Being able to completely cripple any spellcaster on one save from one 3rd level spell is kind of outrageously powerful. Either this needs to be a 6th or 7th level spell or the effects need a hefty rebalance.