Дочка дорисовала дом, а потом докрасила крышу красным цветом.

Дочка is a more affectionate, everyday form of дочь (daughter). It often sounds warmer and more natural in family or casual contexts.

• дочь = neutral, dictionary form
• дочка = affectionate, common in speech

So here дочка suggests a natural, friendly context, such as talking about a child drawing and coloring.

They come from two different base verbs:

• рисовать = to draw
• красить = to paint/color

So:

• дорисовала дом = finished drawing the house
• докрасила крышу = finished coloring/painting the roof

In English, both might sometimes be translated with finish, but in Russian the base verb changes depending on the action:

• drawing lines/shapes → рисовать
• applying color/paint → красить

Here до- gives the idea of finishing something that was already started.

So:

• дорисовать = to finish drawing
• докрасить = to finish painting/coloring

This implies the house and roof were not complete before. She worked on them until they were done.

That is different from:

• нарисовать = to draw/create something
• покрасить = to paint/color something

Those do not necessarily focus on completing an already started action in the same way.

Because дорисовала specifically suggests that the drawing was already in progress, and she finished it.

Compare:

• нарисовала дом = she drew a house
• дорисовала дом = she finished drawing the house

So дорисовала adds the idea of completion after partial work. This fits well with the next action: after finishing the house, she then finished coloring the roof.

It is in the accusative. The reason it looks unchanged is that дом is an inanimate masculine noun, and for most inanimate masculine nouns, the accusative singular is the same as the nominative singular.

So:

• nominative: дом
• accusative: дом

This is normal.

Because крыша is the direct object of докрасила, so it must be in the accusative case.

For this noun:

• nominative: крыша
• accusative: крышу

This is a very common pattern for feminine nouns ending in -а:

• мама → маму
• машина → машину
• крыша → крышу

Красным цветом is in the instrumental case, and it expresses the color used.

• красный цвет = red color
• instrumental: красным цветом

With verbs like красить, Russian often uses:

• красить что? каким цветом?
• to paint/color something what color?

So:

• докрасила крышу красным цветом = finished coloring the roof red

This is a natural Russian structure.

Yes, often you can.

• докрасила крышу красным is possible
• докрасила крышу красным цветом is more explicit

The version with цветом sounds a bit fuller and clearer, especially for learners. In normal speech, Russian speakers often omit цветом if the meaning is obvious.

А потом links the two actions and moves the story forward: and then / and after that.

In this sentence, а does not strongly mean contrast. It works more like a connector between stages of the story.

• потом = then, afterward
• а потом = and then / then after that

Russian often uses а in narration where English might simply use and or nothing at all.

Because both verbs are:

• past tense
• singular
• feminine

The subject is дочка, which is feminine, so the verbs agree with it.

Compare:

• он дорисовал = he finished drawing
• она дорисовала = she finished drawing
• оно дорисовало = it finished drawing
• они дорисовали = they finished drawing

The same pattern applies to докрасила.

Because the sentence describes completed actions:

1. she finished drawing the house
2. then she finished coloring the roof

Russian uses the perfective aspect for single completed events in sequence.

Here the perfective forms are:

• дорисовала
• докрасила

If you used imperfective forms like дорисовывала or докрашивала, the meaning would change. It would sound more like she was in the process of finishing them, or it would refer to repeated/habitual action, depending on context.

Yes, that is the natural interpretation.

She finished drawing the house, and then she finished coloring the roof. In context, the roof is understood as the roof of that house, even though Russian does not need to repeat its or the house’s.

This kind of omission is very common when the relationship is obvious from context.

No, Russian word order is fairly flexible, but this version is natural and easy to follow.

• Дочка дорисовала дом, а потом докрасила крышу красным цветом.

This order presents:

1. the subject
2. the first completed action
3. the second completed action
4. the color detail

You could rearrange parts for emphasis, but the original sounds neutral and standard. For example, moving красным цветом earlier would usually add emphasis to the color rather than simply stating it.