Wait, wait - firstly, there's 80 colours in the game, and currently 30 patterns :o these are not to your liking? By the way, you can take screenshots of your avatar by going into Outfit, and clicking the camera icon in the top left. The screenshots should save in your www > Screenshots folder.
Linking Pride And Prejudice to Neil's route, I guess that's one way to look at it! Neil is born from a stereotype; the tsundere. It's probably the most popular guy in otome games. While I enjoy them as well, the one thing I hate about them is ... the MC never fights back. She gets emotionally abused and tossed around and just sits there letting things happen. I wanted my MC to grow a spine and fight back - put him in his place, so to speak. Which of course, led to the revelation that maybe, she's sometimes as bad as him, indulging him with his bickering.
I'm pretty surprised you got equally fierce and kind! Mostly people lean one way or another.
I did contemplate drawing the third CG with the MC and her dress as they danced together - but on the other hand, I felt like the reveal was a much major point, and it would have kind of been spoiled by the "hey here's a CG of the man you don't know is Neil yet". On the other hand, the dress will be an item you have to wear to be able to proceed and read the chapter in the future! There will be 'dress checkpoints' so to speak.
As for Dimitri being young - he'll be 19 starting chapter 3, and during his route will turn 20. The MC is 23. It's a conflict of interest, as well as being the brother of your ex. Personally, the script is lots of fun to write! And your suggestion is on par of what I have planned for him haha. Well, spoilers for chapter 3 here: Dimitri is looking for a place to live without relying on his family, and ends up living with the MC.
Either way, glad you enjoyed yourself! As for donations, I am thinking about maybe setting up some paid DLC (exclusive clothes and whatnot) so that people can donate and support me if they want, whereas still staying a free game.