its a very cute piece and in general I think that you really did a good work with your color values. its very vibrant and there's a consistent light sourceI do have a few things about this piece I think you could've done better. the first is that even though the light source is consistent you really overused the soft shading in her hair and clothes. imo when you shade you need to use a combinaltion of soft and more blunt shading styles to add more contrast. kinda like in this piece here (and yes I know im using my own example here but yeah).my second issue is with the proprotions in the hands. the fingers that are folded are relatively small and are placed a little too high. but hand itself isn't too small or too big which is a definitely a plus.and my final issue is with tsuyu's facial expression. I know you're going for a relatively moe art style which is cool but something about the expression just feels a little lacking. I think It has to do with the eyes because they seem to be staring into a random place. if you were to make her stare into a different direction like say the viewer then it would look less uncannyyou don't have to take every piece of advice I gave you but I hope you read my critique. its still a very cute piece~