A sucky love story on VK could be one with weak character development. If the characters don't grow or change in a meaningful way, it can be a letdown. Also, a lack of emotional depth or believable conflicts can make it not so great.
You need to study the style of noir comics first. Understand the use of light and shadow, and the expression of characters' emotions. Then, practice with simple sketches on VK.
YA novels on VK often have engaging storylines and relatable characters that appeal to young adults. They cover various themes like romance, adventure, and self-discovery.