your drawings are super cute!!! and your banners are looking really great too! i'm especially a fan of that last one.
a little bit of constructive crit: i've noticed the characters you draw all have similarities in the faces, and that's okay! if it's a comfortable thing for you to draw, that's totally understandable, and i think a lot of us are guilty of that sort of thing. something i'd recommend is practicing how to draw different face shapes and facial features. even though your style leans towards the chibi side, i think being able to incorporate different features in that style could be possible! plus, i've found drawing and combining various features is a fun thing to do, and practicing this sort of thing could help to further develop your style as an artist.
Your art is super cute Tensu! I can see that you're improving very quickly! ^^ Cool GFXs by the way!